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For questions about materials which allow the flow of an electric charge (electrical conductors) or the transfer of heat (thermal conductors) through them.

3 votes
3 answers
2k views

When current passes through a wire, does it only travel through the outer surface?

In electrostatics we are taught that the field inside a conductor is always zero. So when current passes through a wire, the electricity only passes through the surface of the conductor. In magnetism, …
Ishita Gupta's user avatar
4 votes
1 answer
419 views

What is the method to find field at the center of a conducting shell due to induced charges ... [closed]

For example, if we had to find the field at Q1 due to the induced charges on the outside spherical surface ,what should be our approach? According to me, as the induced charges due to q2 on the con …
Ishita Gupta's user avatar