magnetism

Related Questions

• The period of oscillation of a vibration magnetometer depends on which of the following factors. (where I is the moment of inertia of the magnet about the axis of suspension, M is the magnetic moment of the magnet and H is the external magnetic field)

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• Two identical bar magnets are placed on above the other such that they are mutually perpendicular and bisect each other. The time period of this combination in a horizontal magnetic field is T. The time period of each magnet in the same field is

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• Among the following properties describing diamagnetism identify the property that is wrongly stated

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• A bar magnet having centre O has a length of 4 cm. Point $P_1$ is in the broad side-on and $P_2$ is in the end side-on position with $OP_1 = OP_2 = 10$ metres. The ratio of magnetic intensities H at $P_1$ and $P_2$ is

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• A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30o and 15 oscillations per minute at a place where dip angle is 60o. The ratio of total earth's magnetic field at the two places is

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