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The emf produced in a coil is 5V when cu...

The emf produced in a coil is 5V when current is changed at the rate of `20A/s` .The magnetic energy stored in the coil when a current of `0.2A` flows through it is (A) 1x`10^(-3)` J (B) 4x`10^(-3)` J (C) 5x`10^(-3)` J (D) 0.32 J`

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