Question

A closed Gaussian surface encloses a charge ‘q’ if the charge moves within the Gaussian surface, the physical quantity which varies is -
1) Electric Field
2) Electric Flux
3) Charge
4) Area of Gaussian Surface

Answer 1

Answer:

It is not necessary that electric field should be zero because if net charge is zero. Then there may be possibility that only dot product of E and A will be zero. That doesn't mean that electric field will be zero.

Explanation:

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