Moving Charges and Magnetism

Related Questions

• An electron and a proton have equal kinetic energies. They enter in a magnetic field perpendicularly, Then

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• The relation between voltage sensitivity (${\sigma _V}$) and current sensitivity $({\sigma _i})$ of a moving coil galvanometer is (Resistance of Galvanometer = G)

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• A current of 10A is passing through a long wire which has semicircular loop of the radius 20cm as shown in the figure. Magnetic field produced at the centre of the loop is

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• A long solenoid has 200 turns per cm and carries a current of 2.5 amps. The magnetic field at its centre is$({\mu _0} = 4\pi \times {10^{ - 7}}\,weber/amp{\rm{ - }}m)$

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• Two concentric coils each of radius equal to $2\pi {\rm{ }}cm$ are placed at right angles to each other. 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in $Weber/{m^2}$ at the centre of the coils will be $({\mu _0} = 4\pi \times {10^{ - 7}}Wb/A.m)$

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