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A short bar magnet passes at a steady speed right through a long solenoid. A galvanometer is connected across the solenoid. Which graph best represents the variation of the galvanometer deflection with time
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Important Questions on Electromagnetic Induction
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A bar magnet is made to fall through a long vertical copper tube. The speed of the magnet as a function of time is best represented by
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A loop of irregular shape made of flexible conducting wire carrying clockwise current is placed in uniform inward magnetic field, such that its plane is perpendicular to the field. Then the loop
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A flat coil of turns, each of area , rotates in a uniform magnetic field of about an axis normal to the field at an angular speed of The coil has a resistance of The induced e.m.f. is applied to an external resistance of The peak current through the resistance is
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The physical quantity, which is conserved on the basis of Lenz's Law is
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An aeroplane is flying horizontally with a velocity of The distance between the tips of the wings of aeroplane is The vertical component of earth's magnetic field is The induced is
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A metallic ring with a cut is held horizontally and a magnet is allowed to fall vertically through the ring, then the acceleration of this magnet is
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When a conducting wire is moved towards the right, a current flows in the anti-clockwise direction. Direction of magnetic field at point is
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A copper rod of length is rotated about one end, perpendicular to the magnetic field with constant angular velocity The induced emf between the two ends is
