Question:
Poil is 30 A coil of effective area 4 m is placed at right
Last updated: 6/12/2023
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Poil is 30 A coil of effective area 4 m is placed at right angles to the magnetic induction B The e m f of 0 32 V is induced in the coil When the field is reduced to 20 of its initial value in 0 5 sec Find B in wb m