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The current, through a coil of self inductance. L = 2mH, is given by I = t^2 e^-t at time t.

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The current, through a coil of self inductance. L = 2mH, is given by I = t2 e-t at time t. The time taken, to make the induced emf zero, will be

(1) 1 S

(2) 2 S

(3) 3 S

(4) 4 S

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Correct option is (2) 2 S

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