Question

A coil has 1,000 turns and 500 cm^(2) as its area. The plane of the coil is placed at right angles to a magnetic induction field of 2 xx 10^(-5) web//m^(2). The coil is rotated through 180^(@) in 0.2 second. The average emf induced in the coil, in milli volts, is :

Answer 1

Answer:

$emf \: = \frac{ndfie}{dt} \\ emf \: = \frac{1000 \times 500 \times {10}^{ - 4 } \times 2 \times {10}^{ - 5} \times 2 }{ 0.2} \\ emf \: = 0.01$

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