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(a) Draw a labelled diagrame of an ac g...

(a) Draw a labelled diagrame of an ac generator. Obtain the expression for the emf induced
in the rotating coil of N turns each of cross-sectional are A, in the presence of a magnetic
field ` overset(to) (B)` .
(b) A horizonatal conducting rod 10m long extending from east to west is falling with a
speed 5.0 ms `^(-1)` at right angles to the horizontal component of the Earth's magnetic fields.
` 0.3 xx 10^(-4) Wb m^(-2)`. Find the instantaneous value of the emf induced in the rod .

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