Moving Charges and Magnetism

Related Questions

• Two concentric circular coils of ten turns each are situated in the same plane. Their radii are $20$ and $40 cm$ and they carry respectively $0.2$ and $0.3 ampere$ current in opposite direction. The magnetic field in $weber/{m^2}$ at the centre is

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• Magnetic effect of current was discovered by

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• A rectangular coil $20\,cm \times 20\,cm$ has 100 turns and carries a current of 1 A. It is placed in a uniform magnetic field B =0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is

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• An electron having charge $1.6 \times {10^{ - 19}}\,C$ and mass $9 \times {10^{ - 31}}\,kg$ is moving with $4 \times {10^6}\,m{s^{ - 1}}$ speed in a magnetic field $2 \times {10^{ - 1}}\,tesla$ in a circular orbit. The force acting on electron and the radius of the circular orbit will be

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• The electron in the beam of a television tube move horizontally from south to north. The vertical component of the earth's magnetic field points down. The electron is deflected towards

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