Moving Charges and Magnetism

Related Questions

• Magnetic dipole moment of a rectangular loop is

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• A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is B. It is then bent into a circular loop of n turns. The magnetic field at the centre of the coil will be

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• A stream of electrons is projected horizontally to the right. A straight conductor carrying a current is supported parallel to electron stream and above it. If the current in the conductor is from left to right then what will be the effect on electron stream

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• Which particles will have minimum frequency of revolution when projected with the same velocity perpendicular to a magnetic field

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• A straight wire of length $({\pi ^2})$ metre is carrying a current of $2A$ and the magnetic field due to it is measured at a point distant 1 cm from it. If the wire is to be bent into a circle and is to carry the same current as before, the ratio of the magnetic field at its centre to that obtained in the first case would be

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