What is electromagnetic induction? Explain how the movement of a magnet towards or
away from a coil carrying a galvanometer produce current? Write the rule to find the
direction of current in this above coil.
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Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.
If a magnet is moved towards or away from a coil of wire connected to a galvanometer, the galvanometer needle shows a deflection. This shows that current is induced in the coil due to the motion of the magnet
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