The correct expression for the potential at a point distance r from a charge q in an electric field is?
| _q2 |
| 4πεor2 |
| _q2 |
| 4πεor |
| _q |
| 4πεor2 |
Electric potential is work done in taking a unit mass or charge from infinity to that point
V = \(\frac{\text{W}}{\text{Q}}\) = \(\frac{\text{Fr}}{\text{Q}}\) = \(\frac{Q_1Q_2}{4πεor^2}\) x \(\frac{\text{r}}{Q_1}\)
= \(\frac{- q}{4πεor}\)
There is an explanation video available below.
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