magnetism

Related Questions

• The pole strength of a bar magnet is 48 ampere-metre and the distance between its poles is 25 cm. The moment of the couple by which it can be placed at an angle of $30^o$ with the uniform magnetic intensity of flux density 0.15 Newton /ampere-metre will be

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• A short magnet of moment $6.75 Am^2$ produces a neutral point on its axis. If horizontal component of earth's magnetic field is $5 \times {10^{ - 5}}Wb/{m^2}$, then the distance of the neutral point should be

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• A small bar magnet A oscillates in a horizontal plane with a period T at a place where the angle of dip is $60^o$. When the same needle is made to oscillate in a vertical plane coinciding with the magnetic meridian, its period will be

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• Which of the following statement is true about magnetic moments of atoms of different elements

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• The number of turns and radius of cross-section of the coil of a tangent galvanometer are doubled. The reduction factor K will be

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