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Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon

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Important Questions on Electromagnetic Induction

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Two identical inductance carry currents that vary with time according to linear laws (as shown in figure). In which of two inductance is the self induction emf greater?

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An inductor coil stores energy U when a current i is passed through it and dissipates heat energy at the rate of P. The time constant of the circuit when this coil is connected across a battery of zero internal resistance is :
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The figure shows a plane made of a conductor located in a magnetic field, along inwards, normal to the plane of the figure. P and Q are two coils. The magnetic field starts diminishing. Select the incorrect statement.

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A conducting wire frame is placed in a magnetic field which is directed into the paper. The magnetic field is increasing at a constant rate. The directions of induced current in wires AB and CD are :-

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In ac circuit when ac ammeter is connected it reads i current if a student uses dc ammeter the reading in the dc ammeter will be
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In an LC circuit, the capacitor has maximum charge q0. The value of didtmax is

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In an oscillating LC circuit, the maximum charge on the capacitor is Q. The charge on the capacitor when the energy is stored equally between the electric and magnetic fields is
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A coil of cross-sectional area A having n turns is placed in a uniform magnetic field B. When it is rotated with an angular velocity ω, the maximum e.m.f. induced in the coil will be: