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In a closed loop of area 1.5 $m^{2}$ which has an inductance of 2H but negligible resistance, uniform but time varying magnetic field is applied directed into the plane of the loop. Variation of field with time is shown. Initially current in the loop was zero. Then

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emf induced in the loop is zero at t = 2 s is zero

direction of emf in the loop will change at t = 2 s

current in the loop will be maximum at t = 2 s is 2 volt

At t = 0 , magnitude of induced emf is zero .

answer is A, C.

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Detailed Solution

$e = - \frac{d ϕ}{d t} = - A \frac{d B}{d t} = - A (s l o p e o f B - t g r a p h)$

At $t = 2,$ slope is zero and it changes its sign.

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