A coil having effective area A, 13 with its plane normal to a magnetic field of induction B. The magnetic induction is quickly reduced to 25% of its initial value in 2s. Then e.m.f. induced across the coil will be З АВ 3 AB (b) (a) 8. 4 АВ АВ (c) 4 (d) 2
A coil having effective area A, 13 with its plane normal to a magnetic field of induction B. The magnetic induction is quickly reduced to 25% of its initial value in 2s. Then e.m.f. induced across the coil will be З АВ 3 AB (b) (a) 8. 4 АВ АВ (c) 4 (d) 2
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Transcribed Image Text:A coil having effective area A, is
with its plane normal to a magnetic field of
induction B. The magnetic induction is
quickly reduced to 25% of its initial value in
2s. Then e.m.f. induced across the coil will be
3 AB
З АВ
(a)
(b)
8
4
АВ
АВ
(c)
4
(d)
2
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