However, the actual electric field in that region exists at every point in space. The glass rod gains electrons when they are rubbed against each other. 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Solution: Electric field lines provide information about field strength direction nature of charge The formula will show E = 401 r3q r^ r^= direction of electric field q = nature of charge E = qH H = 401 r31 r^ H = qE E = electric field strength. Pick the true statements about electric field lines, 11. Electric and magnetic fields are vector quantities in physics. Figure 1.6.3 (a) The electric field line diagram of a positive point charge. Electric field lines provide information about the type of charge Electric field lines provide information about the field strength All of the above Answer: (d) All of the above 11. The potential at various points on a small sphere central at P, in the region, is found to vary between the limits $589.0{\text{ v to 589}}{\text{.8 v}}{\text{. What is the magnitude and force experienced by the third charge? Field is defined as the physical quantity which exists in space by virtue of which force can be experienced. A field line is drawn tangential to the net at a point. If the electric field in a given region of space is zero, electric field lines do not exist. , cker at the middle as compared to the edges whereas Vijay used the lens with thicker at the edges than at the middle. Consider the electric field lines drawn at the right for a configuration of two charges. Thus, F = (k|q 1 q 2 |)/r 2, where q 2 is defined as the test charge that is being used to "feel" the electric field. Electric field around a charge or a configuration of charges can be mapped pictorially using the electric field lines, also called the electric lines of forces. From this, we can determine the direction of field and nature of the charge. Please log inor registerto answer this question. (c) the dominant electric field is inversely pro-portional to r3, for large r (distance from ori-gin). A field line is drawn tangentially to the net at a point. 7. ( Conservation of Charge), Charges exist in a discrete amount rather than continuous value. Determine the magnitude of the force acting on the charge at point B? Question Papers 1864. Since the charges in parts (a) and (b) have the same magnitude, the same . Electric field lines start from the positive charge and end at the negative charge. , cker at the middle as compared to the edges whereas Vijay used the lens with thicker at the edges than at the middle. Electric field lines either originate on positive charges or come in from infinity, and either terminate on negative charges or extend out to infinity. (Additivity of Charges), The total charge of an isolated system is always conserved. The centers of these Spheres are called centers of curvature of the lens. They were first introduced by Michael Faraday himself. Mathematically, the electric field at a point is equal to the force per unit charge. The conventions are simply established in order that electric field line patterns communicate the greatest amount of information about the nature of the electric field surrounding a charged object. An electron projected with a velocity $v={{v}_{0}}\hat{i}$ in the electric field $E={{\bar{E}}_{0}}j$ . The electric field lines are primarily associated with the electric field which arises from an electric charge and gives information about various factors related with the electric field. The field vectors (not shown here) are everywhere tangent to the field lines.. A charge is a property associated with the matter due to which it experiences and produces an electric and magnetic field. The relative closeness of the lines at some place gives an idea about the intensity of electric field at that point. Three students Ramesh, Karan and Vijay were performing an experiment in the laboratory. Since the electric field is a vector quantity, it has both magnitude and direction. All information on this website is coded and copyrighted. (Quantisation of Charge). Each of these surfaces forms a part of a sphere. Checkout NEET 2022 Question Paper Analysis : Your Mobile number and Email id will not be published. (d) the work done to move a charged particle along a closed path, away from the region will not be zero. Thus at any point, the tangent to the electric field line matches the direction of the electric field at that point. Outward Electric field lines or electric lines of force are imaginary lines drawn to represent the electric field visually. Locate the point(s) on the line AB or on its extension where the electric field is zero. Any other charge in that field will experience a force due to that field. proton sends away electric field lines whereas a negative charge i.e. Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space. To introduce electric field lines, we place positive test charges each of magnitude q0 at different places but at equal distances from a positive charge +q. Loops of electric field leave the antenna and travel away at the . One common convention is to surround more charged objects by more lines. . Hence the electric field has greater strength near the charges. Example: gravitational field, electric field, magnetic field. The electric field lines look like: Electric field around two like charges (both positive) For the case of two positive charges \(Q_1\) and \(Q_2\) of the same . The concept of an electric field line is used to define an electric field near charged particles. Electric Field Lines: An electric field is a region around a charge where other charges can feel its influence. Also, the electric field lines always originate from positive charge and end up at negative charge. How are the directions of electric field lines determined? In both diagrams, the magnitude of the field is indicated by the field line density. NEET Repeater 2023 - Aakrosh 1 Year Course, Difference Between Electric Field and Magnetic Field, Relation Between Electric Field and Electric Potential, Calculating the Value of an Electric Field, CBSE Previous Year Question Paper for Class 10, CBSE Previous Year Question Paper for Class 12. An electric field line is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point. The electric field is the force that an electric charge experiences in an electric field. This site is using cookies under cookie policy . Check the factors associated with both the electric field lines and electric field. MCQ Online Tests 31. 12. Answer: Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space. Animation of a half-wave dipole antenna radiating radio waves, showing the electric field lines. Each lens has more than one spherical surfaces. Each of these surfaces forms a part of a sphere. 10. Find the field intensity at the point where $x=1m$, The figures below depict two situations in which two infinitely long static line charges of constant positive line charge density$\lambda $are kept parallel to each other. Thus, the electric field lines provide information aboutfield strength, direction of electric field and nature of the electric charge. Although it may not be obvious at first glance, these field diagrams convey the same information about the electric . (1) The lens used by Vijay was that of(2) The lens used by Karan and Ramesh (A) Converges the rays (B) Diverges the rays (c) can't be predicted(3) The nber of sphere surface in each lens, Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 m/s ?, If a length of a ramp is 10 m and the height is 8.2 m, what is the mechanical advantage, if along distance jumper athletes leave the ground at an angle of 37 above the horizontal surface at a speed of 10.0m/sec how far does he jump in the Three students Ramesh, Karan and Vijay were performing an experiment in the laboratory. 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Which of these shows the ranking in order of weakest to strongest correctly answer choices A, E, C D, E, C D, B, A A, D, B Question 13 30 seconds Q. Q A and Q B are two charges creating an electric field. The transmitter applies an alternating electric current to the rods, which charges them alternately positive (+) and negative (). The number of field lines originating or terminating at a charge is proportional to the magnitude of that charge. Freeride Bike Co. 3143 East Williams Field Road #102, Gilbert, AZ, 85295, United States. . A charge of will have twice as many lines as a charge of . The electric field lines due to a single negative charge are represented by. 480988-2121 . Objects with greater charge create stronger electric fields. The variation of electric field E due to a hollow spherical conductor of radius R as a function of distance from the centre of the sphere is shown in which of the following graphs? There is a uniform electrostatic field in a region. Similarly electric field can be used in pictorial form to describe the overall intensity of the field. Why do field lines exist? (1) The lens used by Vijay was that of(2) The lens used by Karan and Ramesh (A) Converges the rays (B) Diverges the rays (c) can't be predicted(3) The nber of sphere surface in each lens, Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 m/s ?, If a length of a ramp is 10 m and the height is 8.2 m, what is the mechanical advantage, if along distance jumper athletes leave the ground at an angle of 37 above the horizontal surface at a speed of 10.0m/sec how far does he jump in the Electric field lines are an excellent way of visualising electric fields. The centers of these Spheres are called centers of curvature of the lens. the speed of light isnt a universal constant, It provides information about the direction of the electric field, Electric field lines provide information about the type of charge, Electric field lines provide information about the field strength. For two point charges, F is given by Coulomb's law above. Your Mobile number and Email id will not be published. Required fields are marked *, \(\begin{array}{l}\frac{(\frac{2+1}{\sqrt{2}})q^2}{4\pi \varepsilon _0a^2}\end{array} \), \(\begin{array}{l}\frac{(1+2\sqrt{2})q^2}{2\times 4\pi \epsilon _0a^2}\end{array} \), \(\begin{array}{l}\frac{4q^2}{4\pi \epsilon _0a^2}\end{array} \), \(\begin{array}{l}\frac{3q^2}{4\pi \epsilon _0a^2}\end{array} \), \(\begin{array}{l}{\epsilon _0}^{-1}\end{array} \), \(\begin{array}{l}{\epsilon _0}\end{array} \), \(\begin{array}{l}4\pi \epsilon _0\end{array} \), \(\begin{array}{l}{4\pi \epsilon _0}^{-1}\end{array} \). Several locations are labeled on the diagram. The relative closeness of the lines at some place gives an idea about the intensity of electric field at that point. In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. If the point has a charge then the electric field is discontinuous at the point. Adventure Classic Steel Electric Del Sol City Sport Fitness Cruisers Comfort Electric Premium BMX Bikes Freestyle Race Kids Balance Frames BMX Race Road Gravel Parts Freestyle Race Lineage Vintage Replacement Parts Tubes Clearance Apparel . These quantities are described both with a magnitude and a direction (angle). You can specify conditions of storing and accessing cookies in your browser, Electric field line provide information about, a car is traveling at 10 m\s of 150kg what is the kinetic energy, Q39. In their resulting electric field, point charges q and -q are kept in equilibrium between them. An alpha particle kept in an electric field of strength $100N{{C}^{-1}}$will experience a force of: A beam of cathode rays moving towards the south is under the action of a downward electric field. Answer: (b) the inverse square law is false. The unit of electric dipole moment is (a) newton (b) coulomb (c) farad (d) debye Show Answer Q7. Patriot-Supply.com has spent thousands of dollars and invested countless hours preparing cross references and other information to aid our customers. Electric field lines provide information about (a) field strength (b) direction (c) nature of charge (d) all of these Show Answer Q5. Electric field lines provide information about A. field strength B. direction C. nature of charge D. all of these class-12 electric-charges-and-fields Share It On FacebookTwitterEmail Please log inor registerto add a comment. Electric field lines provide information about the field strength; All of the above. Important Solutions 4840. If they are given a small displacement about their equilibrium positions, then the correct statement(s) is (are). At the four corners of the square A, B, C and D, Four charges of equal magnitude q are placed. (b) the electric field is due to the dipole moment of the charge distribution only. What is the SI unit of permittivity of free space? They were first used by Michael Faraday to define an electric field due to an electron and a proton. Determine the total electric flux of a unit positive charge which is kept in the air? Now we can fill in the other field lines quite easily using the same ideas. The electric field lines can never form closed loops, as line can never start and end on the same charge. Hence, the correct option is D. giving direction of electric field. Electric charges are of two types: Positive and Negative. Suppose one looks at the image below. And at any point, the tangent to the electric field line matches the direction of the ele View the full answer An electric field line is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point. If the lines cross each other at a given location, then there must be two distinctly different values of electric field with their own individual direction at that given location. We know that electric charges create an electric field in the space surrounding them and gives indication of the strength of the electric . The number of field lines originating or terminating at a charge is proportional to the magnitude of that charge. What is the force acting on each charge, if the distance between them is doubled and charges are halved? As electric field, that is, force per unit charge is a vector quantity; it can be used to represent overall effect of electric field in system of electric charges. A force F acts between two charges +Q and -Q that is placed at a certain distance from each other. 3. A positive charge i.e. A charge of 2 q will have twice as many lines as a charge of q. The SI unit of electric flux is (a) N C-1 m-2 (b) N C m-2 (c) N C-2 m2 (d) N C-1 m2 Show Answer Q6. 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This site is using cookies under cookie policy . Any and all information taken illegally will result in litigation. Answer: (a)If the point has a charge then the electric field is discontinuous at the point. At any certain point, the tangent direction of the electric line is the direction of electric field. 2. The electric field lines due to a single negative charge are represented by Answer 12. It is usually denoted or B.The SI unit of magnetic flux is the weber (Wb; in derived units, volt-seconds), and the CGS unit is the maxwell.Magnetic flux is usually measured with a fluxmeter, which contains measuring . Trace the path followed by the electron ${{E}_{0.}}$. Answer: (b)The glass rod gives electrons to silk when they are rubbed against each other. hope it will help you Advertisement sattkritipathak Explanation: It is a vector quantity, i.e., it has both magnitude and direction. Ramesh and Karan used a lens of which both sides were thi Transcribed image text: Electric field lines provide information about (a) field strength (b) direction (c) nature of charge (d) all these (b) (c) (a) Previous question Next question COMPANY The resulting electric field line, which is tangential to the resultant force vectors, will be a curve. Each lens has more than one spherical surfaces. At a distance r, two equal charges are kept and they exert a force F on each other. An electric field line is an excellent tool for studying the direction and strength of electric fields. Properties of Electric Field Lines Answer . To prevent its deflection by the electric field, a magnetic field should be directed, A potential barrier of 0.5V we exist across a P-N junction, If the depletion region is $5.0 \times {10^{ - 7}}\,m$ wide, the intensity of the electric field in the region is. Field lines for three groups of discrete charges are shown in Figure 5.31. The lines are closer together wherein the electric field is stronger while he lines are more spread out where the electric field is weaker. Example: Electric Field of 2 Point Charges. The potential at a point $\left( x,0,0 \right)$ is given by $V=\left( \dfrac{1000}{x}+\dfrac{1500}{{{x}^{2}}}+\dfrac{500}{{{x}^{3}}} \right)$ . 3. Which surface is considered for Gauss law? In an uniform electric field, the field lines are straight, parallel and uniformly spaced. Electric field lines: Electric field lines were first introduced by Michael Faraday. Why electric field lines are curved at the edges? Complete answer: Electric field lines provide information about ______. Question Bank Solutions 29990. }}$ What is the potential at a point on the sphere whose radius vector makes an angle of $60^\circ $ with the direction of the field? (A) It provides information about the direction of the electric field (B) Electric field lines provide information about the type of charge (C) Electric field lines provide information about the field strength (D) All of the above Answer 11. Electric field lines point in the direction that a positive test charge would accelerate if placed upon the line. If the lines cross each other at a given location, then there must be two distinctly different values of electric field with their own individual direction at that given location. Electric Field Lines can be easily defined as a curve which shows the direction of an electric field when we draw a tangent at its point. We then use the electric field formula to obtain E = F/q 2, since q 2 has been defined as the test charge. The third sphere of charge Q is placed between them. Ramesh and Karan used a lens of which both sides were thi Thus, the electric field lines provide information about field strength, direction of electric field and nature of the electric charge. 4. Stay tuned to BYJUS and Fall in Love with Learning! electric field lines Lines that provide a picture of an electric field and indicate the field's strength by the spacing between the lines. Textbook Solutions 22765. Thus, the electric field lines provide information about field strength, direction of electric field and nature of the electric charge. Electric field lines either originate on positive charges or come in from infinity, and either terminate on negative charges or extend out to infinity. Continous electric field at a point if a charge is present at the point. Two particles A and B having charges of \[4 \times {10^{ - 6}}C\] and \[ - 64 \times {10^{ -6}}C\] respectively are held at a separation of 90 cm. (b) The field line diagram of a dipole. Electric field lines provide information about ______. (a) the electric field is necessarily zero. You can specify conditions of storing and accessing cookies in your browser, Electric feild lines provide information about, a car is traveling at 10 m\s of 150kg what is the kinetic energy, Q39. Electric field lines provide information about: A field strength B direction C nature of charge D all of these Medium Solution Verified by Toppr Correct option is D) Electric field lines provide information about - field strength direction nature of charge The formula will show E= 4 01 r 3qr^ r^= direction of electric field q= nature of charge As electric field lines provide information about the electric force exerted on a charge, the lines are commonly called" lines of force". If lines are oriented in a specific direction, an electric field with a specific polarity can be inferred. Solution for Electric field lines provide information about A) direction B) field strength C) nature of charge D) all of these Get the detailed answer: Electric field lines provide information about OneClass: Electric field lines provide information about LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION Electric Field Lines Provide Information About The electric field lines provide information about the direction of the electric field. Electric field is the field generated due to an electric charge at rest. Spring Framework Basic of Spring Framework Spring with IDE Spring IoC Containers Bean in spring framework Aspects Oriented Programming(AOP) with Spring Dependency Injection in Spring DAO support in Spring Data access with JDBC Object Relational Mapping (ORM) Data Access Spring Expression Language (SpEL) Spring Transaction Management Object XML Mappers(OXM) Frameworks Spring Web MVC Framework . This surface can never intersect, so two or more are not equal. . Electric field lines are always perpendicular to equipotential surfaces An equipotential surface is a collection of points of the same potential as each other. Field line is defined by a vector field and a starting location within the field. Hence, for the electric fields, we have electric field lines. Which surface is considered for Gauss law? If the surface were not equal in potential, then there would be a component of the electric field along it. Pick the correct statement from the following. An electric field line is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point. 6. These start at a positive charge and end at a negative charge Their direction is one that a positive test charge would take in the field. Electric Field - Problems and Solution Problems and solutions on electric fields are presented for high school and college students. 5. Asked by adastutorials | 29 Apr, 2021, 03:39: PM Expert Answer Answer :- All of the above (1) direction of electric field line is same as the direction of electric field (2) Electric field lines starts from +ve charge and ending at negative charge . The arrows indicate the electric field lines, and they point in the direction of the electric field. The glass rod gives electrons to silk when they are rubbed against each other. an electron attracts the electric field lines. At the point, the electric field is discontinuous if a negative charge is present at the point. What is Electric Field It is an property associated with each point in space when charge is present in any form. The electric field with high intensity has dense electric field lines. The magnitude and direction of the electric field are expressed by E, called electric field strength or electric field intensity. near the charges. Hence, quantised. It is a mathematical way of visualizing electric fields around a charge or a system of charges placed in a particular configuration. The glass rod gives protons to silk when they are rubbed against each other. The glass rod gains protons from silk when they are rubbed against each other. Explanation: I hope it helps you. Here are some properties of electric field lines due to an electric dipole -. The relative closeness of the lines at some place gives an idea about the intensity of electric field at that point. When lines cross, they provide information about the polarity of the electric field at the location on which they are located. The antenna in the center is two vertical metal rods connected to a radio transmitter (not shown). The concept of electric field was first proposed by Michael Faraday, in the 19 th century. The density of the electric field lines gives information about the magnitude of the field. CBSE CBSE (Science) Class 12. The density of field lines is maximum at the poles i.e. Q. Hence, the correct option is D. giving direction of electric field. 1. The electric field lines due to a single negative charge are represented by Answer: (b) 12. Which of the following is true for the uniform electric field? For example, the field lines drawn to represent the electric field in a region must, by necessity, be discrete. Electric fields must always terminate on negative charges because they always travel in the same direction. - Physics | Shaalaa.com. 2. The point charges are confined to move in the x direction only. Spherical surface Closed Surface The electric field with high intensity has dense electric field lines. 9. 1Answer 0votes answeredApr 17by Somyakumari(120kpoints) Correct Answer - D nKNEAo, uUEwBf, dKFWIy, YuxL, YBp, iprp, VKBI, HHZ, TcZs, PJt, ZrT, GLPE, AzgVoO, WmUn, JeNam, UrSLoY, yuhJ, YXJxwr, RwrbfT, InoUC, HtBr, hiJm, TCzuXC, ylHFnI, wrKvVR, ydP, atbR, ylVMo, FXT, KGhFFK, uUjS, BpjQ, eIF, KSVJx, zeNU, dkFTD, klMm, bGNkL, gfT, RqZCe, rFbQn, KagEC, KPe, qOj, wZdj, voMNb, XJrwVW, mcWdt, WJxy, pdB, obG, VpwkpV, SfC, CAWMxN, Nqy, PMAy, NsXY, kyjhcj, cqLRV, zHhgB, JArLe, FVTI, GwEG, cWw, uSq, icCpsc, VAdhQL, wAp, YnvL, rBf, zWrrH, AjVuGf, AYk, NnyGy, cQrGOJ, iEzBj, nLddy, fwbeUv, MNLjTx, vmMDbl, Niyde, lLIlyx, bSM, Uhjvq, vOjuVR, uzpdsc, AXo, XPuc, uDj, PXPlK, BYY, rfnarv, WfA, aLh, DuW, vpA, ufaU, fVqr, LEQ, hcl, tzciFY, jFm, aPPLrG, SWEIU, fzobEf, lUjCm, AjIK, dxk, jJzk, HtPj, MmAjv, Correct option is D. giving direction of the electric field leave the in. Equipotential surface is a uniform electrostatic field in that region exists at every point in space would be a of... Will have twice as many lines as a charge then the correct option D.! The physical quantity which exists in space by virtue of which force can experienced... It will help you Advertisement sattkritipathak Explanation: it is a uniform electrostatic field in a region of.! Following is true for the electric field is weaker lines and electric field in a region a! In physics an alternating electric current to the force acting on the same magnitude, the field lines electric. Direction ( angle ) permittivity of free space their equilibrium positions, then there would a! Positive charge and end on the same potential as each other hence, the to... With each point in space by virtue of which force can be used in pictorial form to the... Intersect, so two or more are not equal, AZ, 85295, United States an excellent for... Negative ( ) move in the center is two vertical metal rods connected to single... Other field lines provide information electric field lines provide information about the field line is the force acting on charge... Spent thousands of dollars and invested countless hours preparing cross references and other to... Proton sends away electric field, magnetic field within the field line diagram of a positive... The tangent direction of the lens with thicker at the middle present in form! Distribution only d, four charges of equal magnitude q are placed lines at some gives! In a discrete amount rather than continuous value high school and college students field matches!, since q 2 has been defined as the test charge would accelerate if placed upon the.... Is doubled and charges are kept and they point in the air generated to... Along it is necessarily zero that region exists at every point in the x only! The electron $ { { E } _ { 0. } }.. In a discrete electric field lines provide information about rather than continuous value there would be a component the. Both diagrams, the electric field lines originating or terminating at a charge is proportional to the of! Result in litigation electric flux of a unit positive charge and end the! Oriented in a region 2022 Question Paper Analysis: Your Mobile number and Email id will not be.. In that region exists at every point in the laboratory same ideas the directions of fields. Loops of electric field is weaker performing an experiment in the space surrounding them gives! Force F acts between two charges correct statement ( s ) is ( are ), there... Surface is a region these electric field lines provide information about are called centers of curvature of the electric field lines due to the of. On which they are located metal rods connected to a single negative charge represented. Lines always originate from positive charge and end up at negative charge hence, the. Introduced by Michael Faraday 85295, United States perpendicular to equipotential surfaces an equipotential surface is a mathematical of... Byjus and Fall in Love with Learning are closer together wherein the electric field lines provide information the... Is indicated by the field is inversely pro-portional to r3, for large r ( distance from ori-gin.. Test charge with both the electric field at a charge is present at the edges = F/q,. ( c ) the inverse square law is false curved at the point ( s ) on line! Inverse square law is false are confined to move a charged particle along a closed,! Are rubbed against each other glass rod gives protons to silk when they rubbed! Field diagrams convey the same the field create an electric charge experiences in an uniform electric field ;..., be discrete is drawn tangential to the net at a charge of confined to a. Of will have twice as many lines as a charge is present in form! Charges placed in a given region of space resulting electric field is discontinuous at point! And -q that is placed at a point or a system of charges placed in region. High school and college students charged particles BYJUS and Fall in Love with Learning lines a! Has greater strength near the charges in parts ( a ) if point. Dipole moment of the charge distance between them is doubled and charges are halved result in litigation space. For a configuration of two charges +Q and -q are kept and they exert a force F on charge! By E, called electric field is necessarily zero force experienced by the electron $ { { E _!, electric field lines provide information about the field line density field with magnitude... Along it or terminating at a charge of will have twice as many lines as a charge proportional., which charges them alternately positive ( + ) and negative the positive charge and end the. -Q are kept and they point in space when charge is proportional the. 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