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The current passing through a choke coil...

The current passing through a choke coil of 5H is decreasing at the rate of 2A/s. The e.m.f. developed across the coil is?

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Two differenct coils have self-inductances L_(1)=16 mH and L_(2)=12mH . At a certain instant, the current in the two coils is increasing at the same rate and power supplied to the two coils is the same. Find the ratio of induced current

Two differenct coils have self-inductances L_(1)=16 mH and L_(2)=12mH . At a certain instant, the current in the two coils is increasing at the same rate and power supplied to the two coils is the same. Find the ratio of induced voltage

Knowledge Check

  • Current (i) passing through a coil varies with time t as i=2t^(2) . At 1 s total flux passing through the coil is 10 Wb. Then

    A
    self-inductance of the coil is 10 H
    B
    self-inductance of the coil is 5 H
    C
    induced emf across the coil at 1 s is 20 V
    D
    induced emf across the coil at 1 s is 10 V

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