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The variation of potential with distance...

The variation of potential with distance R from a fixed point is shown in figure. The electric field at R = 5 m is -

A

`2.5 Vm^(-1)`

B

`-2.5 Vm^(-1)`

C

`(2//5) Vm^(-1)`

D

`-(2//5)Vm^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
At `r=5 m " "E= -(dV)/(dt) = -((-5)/(2)) =2.5 (V)/(m)`
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