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Question
A magnetic field of 2×10−2 T acts at right angles to coil of area 100cm2 with 50 turns. If the average emf induced in the coil in 0.1V when the field is reduced to zero in time t. The value of 't'
A magnetic field of 2×10−2 T acts at right angles to coil of area 100cm2 with 50 turns. If the average emf induced in the coil in 0.1V when the field is reduced to zero in time t. The value of 't'
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Solution
The correct option is D 0.1S
e=−NA[B2−B1]t
0.1=−50×100×10−4(0−2×10−2)t
t=0.1 sec
e=−NA[B2−B1]t
0.1=−50×100×10−4(0−2×10−2)t
t=0.1 sec
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