magnetism

Related Questions

• Two magnets A and B are identical in mass, length and breadth but have different magnetic moments. In a vibration magnetometer, if the time period of B is twice the time period of A. The ratio of the magnetic moments ${M_A}/{M_B}$ of the magnets will be

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• The correct relation is (Where ${B_H} = $Horizontal component of earth's magnetic field; ${B_V}$= Vertical component of earth's magnetic field and B = Total intensity of earth's magnetic field)

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• A magnet of magnetic moment M and pole strength m is divided in two equal parts, then magnetic moment of each part will be

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• In a tangent galvanometer a current of $0.1 A$ produces a deflection of $30^o$. The current required to produce a deflection of $60^o$ is

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• The magnetic field at a point x on the axis of a small bar magnet is equal to the field at a point y on the equator of the same magnet. The ratio of the distances of x and y from the centre of the magnet is

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