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The magnetic field at a point due to a current-element is directly proportional to
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Important Questions on Magnetic Effects of Electric Current
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A square loop, carrying a steady current , is placed in a horizontal plane near a long straight conductor carrying a steady current at a distance from the conductor as shown in the figure. The loop will experience
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The magnetic field at a distance from a long wire carrying current is . The magnetic field at a distance
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Find the magnetic field at due to the arrangement as shown.
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A current-carrying coil is subjected to a uniform magnetic field. The coil will orient so that its plane becomes
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A bar magnet of magnetic moment , is placed in a magnetic field of induction . The torque exerted on it is
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A steel wire of length has a magnetic moment . It is then bent into a semicircular arc. The new magnetic moment is
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The horizontal component of the earth's magnetic field is where the dip angle is . The magnitude of the earth's magnetic field is,
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The current sensitivity of a moving coil galvanometer depends on,
