- #1
user111_23
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- 0
When work is done on a Coulomb of charge, it gains potential energy equal to the amount of work done on it. Now, since this charge is moving, it's electric field is changing. Because of that, a changing magnetic field surrounds a charge. Now, since this only happens when the Coulomb is moved by a voltage, the PE of the charge will be in the form of an electromagnetic field. This energy does work on devices when the fields set up voltage drops across them.
Any issues here?
Any issues here?