when is speed of rotation of the coil is doubled what will happen to the amplitude
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Explanation:
The frequency increases (there are more waves in the
same time) because the generator completes
more rotations in the same time. One complete turn
of the generator produces one complete wave.
The amplitude increases (the waves go further up and down
from the zero line) showing that a
higher voltage is induced in the coil around the armature.
This happens because the coil is moving
through the field from the permanent magnet more quickly.
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