Answer:
(i)
When coil P is moved towards Q, current will be induced in coil Q. This is because
on moving P the magnetic field associated with Q increases and so a current is
induced. The phenomenon is electromagnetic induction.
(ii) If P is moved away from
Q, the field associated with Q will decrease and a current will be induced but
in the opposite direction.
(iii) Current can be induced
in a coil by (a) moving a magnet towards or away from the coil (b) moving a
coil towards or away from a magnet (c) rotating a coil within a magnetic field.
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