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What is angle between electric field and...

What is angle between electric field and equipotential surface?

A

90°always

B

`0^(@)` always

C

`0^(@)` to `90^(@)`

D

`0^(@)` to `180^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A
Potential gradient along equipotential surface is zero.
i.e. `Ecos theta = -(dV)/(dr) = 0`
`therefore theta = 90^(@)`
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