The correct expression for the potential at a point distance r from a charge q in an electric field is
-
A.
_q2 4πεor2 -
B.
_q2 4πεor -
C.
_q 4πεor2 -
D.
_q 4πεor
Correct Answer: Option D
Explanation
Electric potential is work done in taking a unit mass or charge from infinity to that point
| V = | w | = | Fr | = | Q1Q2 | x | r |
| Q | Q | 4πεor2 | Q1 |
| = | _q |
| 4πεor |