magnetism

Related Questions

• Magnetic moments of two bar magnets may be compared with the help of

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• A tangent galvanometer has a coil with 50 turns and radius equal to 4 cm. A current of 0.1 A is passing through it. The plane of the coil is set parallel to the earth's magnetic meridian. If the value of the earth's horizontal component of the magnetic field is $7 \times {10^{ - 5}}$tesla and${\mu _0} = 4\pi \times {10^{ - 7}}weber/amp \times m$, then the deflection in the galvanometer needle will be

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• A tangent galvanometer has a coil of 25 turns and radius of 15 cm. The horizontal component of the earth’s magnetic field is $3 \times 10^{–5} T$. The current required to produce a deflection of $45^o$ in it, is

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• The magnetic susceptibility of any paramagnetic material changes with absolute temperature T as

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• If a magnet is hanged with its magnetic axis then it stops in

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