| Directions: In the following questions, a statement of Assertion (A) is followed by a statement of Reason: |
| (R). Mark the correct choice as: |
| Assertion (A): Electric field is always normal to equipotential surfaces and along the direction of decreasing order of potential. |
| Reason (R): Negative gradient of electric potential is electric field. |
A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A)
B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A)
C) Assertion (A) is true but Reason (R) is false
D) Assertion (A) is false and Reason (R) is also false
Correct Answer: A
Solution :
(a) There is no potential gradient along any direction parallel to the surface and hence no such electric field parallel to the surface.
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