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Field Lines in Different Scenarios

A rubber ball...

Question

A rubber balloon is given a charge $Q$ distributed uniformly over its surface. Then :

A

electric field may be there inside the balloon

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B

electric field will be there inside the balloon

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C

electric field may be constant inside the balloon

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D

potential may be constant inside the balloon

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Solution

The correct options are
A electric field may be there inside the balloon
D potential may be constant inside the balloon
If the balloon is spherical then the net field inside will be zero and potential will be constant but it may not it is not spherical.

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