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The different ways to induce current in a coil is listed below:

(a) The current can be induced in a coil by rotating it in the magnetic field between the poles of a U-shaped magnet.

b) The current can be induced in the coil by keeping it stationary and rotating a magnet inside it.

c) The current can be induced in a coil by changing the current continuously in 'another coil' kept near it.