magnetism

Related Questions

• The work done in rotating a magnet of magnetic moment $2 A-m^2$ in a magnetic field of $5 \times 10^{–3} T$ from the direction along the magnetic field to opposite direction to the magnetic field, is

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• A magnet of magnetic moment 20 C.G.S. units is freely suspended in a uniform magnetic field of intensity 0.3 C.G.S. units. The amount of work done in deflecting it by an angle of 30o in C.G.S. units is

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• A bar magnet is oscillating in the Earth’s magnetic field with a period T. What happens to its period and motion if its mass is quadrupled

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• The length of a magnet is large compared to its width and breadth. The time period of its oscillation in a vibration magnetometer is 2 s. The magnet is cut along its length into three equal parts and three parts are then placed on each other with their like poles together. The time period of this combination will be

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• At a certain place a magnet makes 30 oscillations per minute. At another place where the magnetic field is double, its time period will be

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