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The variation of potential with distance...

The variation of potential with distance r from a fixed point is shown in fig. The electric field at r = 5cm, is :

A

`3 vot//m`

B

`-3 volt//m`

C

`(1)/(2) volt //m`

D

`-(1)/(3) volt//m`

Text Solution

Verified by Experts

The correct Answer is:
A
`E= -(dv)/(ar)=-((-6)/2)=3v//m`
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