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The classical theory of electric and magnetic fields, both in the static and dynamic case. It also covers general questions about magnets, electric attraction/repulsion, etc. Distinct from electrical-engineering.
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Can the Curl of an electric field (which is constant) be non zero?
This was the solution to problem 4.30 in Griffiths 'Introduction to electrodynamics ' .
In it he asks ' An electric dipole p, pointing in the y direction, is placed midway between two large conduc …
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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, …