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A coil of inductance 5H is joined to a cell of emf 6 V through a resistance 10 Ω at time t = 0.

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A coil of inductance 5H is joined to a cell of emf 6 V through a resistance 10 Ω at time t = 0. The emf across the coil at time t = √2 s is: 

(A) 3V 

(B) 1.5V 

(C) 0.75V 

(D) 4.5V

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Correct option is (A) 3V 

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