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20 January, 22:43

Why do the magnetic forces acting on the coil change as the current running through the coil changes?

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  1. 20 January, 22:52
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    Answer: The changing magnetic field caused by the material's motion induces a current in the coil of wire proportional to the change in field. If a 0 is represented, the magnetic field does not change between the two domains of a bit, so no current is induced as the magnetic material passes the coil.
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