- 1(current)
Q. No.| Statement I: | Work done by electrostatic force is zero if a charge is moving along an equipotential surface. |
| Statement II: | Equipotential surfaces are perpendicular to the electric field. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Both Statement I and Statement II are correct. |
Subtopic: Â Equipotential Surfaces |
 91%
Level 1: 80%+
JEE
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Hints
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The work done to move a charge along an equipotential from \(A\) to point \(B:\)
1. cannot be defined as \(-\int_A^B E.dl\)
2. must be defined as \(-\int_A^BE.dl\)
3. is zero
4. can have a non-zero value
Subtopic: Â Equipotential Surfaces |
 89%
Level 1: 80%+
Hints
Identify the incorrect statement from the following:
| 1. | The equipotential surface created by a single-point charge is spherical. |
| 2. | Equipotential surfaces can also be constructed for a dipole. |
| 3. | Equipotential surfaces are always perpendicular to electric field lines. |
| 4. | The work done in moving a test charge along an equipotential surface is positive. |
Subtopic: Â Equipotential Surfaces |
 84%
Level 1: 80%+
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Hints
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Given below are two statements:
| Assertion (A): | Work done in moving a charge along the equatorial line of an electric dipole from the centre of the dipole through a distance equal to the length of the dipole is zero. |
| Reason (R): | The Equatorial line of the electric dipole lies on the equipotential surface. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Equipotential Surfaces |
 78%
Level 2: 60%+
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A uniform electric field of intensity is shown in the figure. How many of the labelled points have the same electric potential as the fully shaded point?
1. \(2\)
2. \(3\)
3. \(8\)
4. \(11\)
1. \(2\)
2. \(3\)
3. \(8\)
4. \(11\)
Subtopic: Â Equipotential Surfaces |
 77%
Level 2: 60%+
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