Question

Angle between an equipotential surface and electric lines of force is :

A
0o
B
90o
C
180o
D
270o
Solution
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The angle between Electric field and an equi-potential surface is always 900. This is because,when the potential becomes constant,the negative potential gradient also becomes zero,hence necessitating the need for Electric field to be always normal with surface.

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Q1

Define an equipotential surface. Draw equipotential surfaces :

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