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What is the answer to Q.No 15?

What is the answer to Q.No 15?
 

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Grade:12

1 Answers

Abhishek Kumar
askIITians Faculty 255 Points
7 years ago
Charge induced by +Q and -Q on the inner surface is -Q and +Q respectively.
so, net charge induced is Zero. But the surface charge density is not zero inside. Region near to +Q is negatively charge induced and reverse for -Q. So, surface charge density is uneven and non-zero.
But outside surface charge is simply zero from Gauss’ Law and so, no surface charge.
Option 3

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