Moving Charges and Magnetism

Related Questions

• An electron moving towards the east enters a magnetic field directed towards the north. The force on the electron will be directed

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• A charge moves in a circle perpendicular to a magnetic field. The time period of revolution is independent of

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• The magnetic field at the centre of a circular coil of radius r carrying current $I$ is${B_1}$. The field at the centre of another coil of radius $2r$ carrying same current $I$ is${B_2}$. The ratio $\frac{{{B_1}}}{{{B_2}}}$ is

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• A uniform magnetic field acts at right angles to the direction of motion of electrons. As a result, the electron moves in a circular path of radius 2 cm. If the speed of the electrons is doubled, then the radius of the circular path will be

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• A proton enters a magnetic field of flux density $1.5\,weber/{m^2}$ with a velocity of $2 \times {10^7}\,m/\sec $ at an angle of $30^\circ $ with the field. The force on the proton will be

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