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Physics-

General

Easy

Question

If a current of $3.0 blank a m p e r e s$ flowing in the primary coil is reduced to zero in $0.001 blank s e c o n d$ , then the induced e.m.f. in the secondary coil is $15000 blank v o l t s$ . The mutual inductance between the two coils is

$0.5 h e n r y$
$5 h e n r y$
$1.5 h e n r y$
$10 h e n r y$

The correct answer is: $5 blank h e n r y$

$e equals M fraction numerator d i over denominator d t end fraction rightwards double arrow M equals fraction numerator 15000 over denominator 3 end fraction cross times 0.001 equals 5 blank H$

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