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The figure shows a square loop of side which is connected to a network of resistances. The whole setup is moving towards the right with a constant speed of . At some instant, a part of is in a uniform magnetic field of perpendicular to the plane of the loop. If the resistance of is the current in the loop at that instant will be close to:

(a)
(b)
(c)
(d)

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Important Questions on Electromagnetic Induction and Alternating Currents
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A solid metal cube of edge length is moving in the positive -direction, at a constant speed of . There is a uniform magnetic field of in the positive -direction. The potential difference between the two faces of the cube, perpendicular to the -axis, is

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An AC of and peak value flows in a transformer whose mutual inductance is . The induced emf in the secondary is,

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In the circuit shown here, the point '' is kept connected to point '' till the current flowing through the circuit becomes constant. Afterward, suddenly, point '' is disconnected from point '' and connected to point '' at time . Ratio of the voltage across resistance and the inductor at will be equal to :


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An emf of is applied at time to a circuit containing in series inductor and resistor. The ratio of the currents at time and at is close to: (Take )

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A series circuit is connected to a battery of emf . If the circuit is switched on at , then the time at which the energy stored in the inductor reaches times of its maximum value, is :

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A coil of inductance is connected in series with a resistance of and the combination is joined to the terminals of a battery. The time constant of the circuit is,

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Which of the following remain constant in a transformer ?

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A coil having an inductance of is connected in series with a resistance of . If from a cycle source is impressed across the combination, the value of the phase angle between the voltage and the current is,
