Moving Charges and Magnetism

Related Questions

• Four wires each of length 2.0 metres are bent into four loops P, Q, R and S and then suspended into uniform magnetic field. Same current is passed in each loop. Which statement is correct

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• The magnetic induction at the centre of a current carrying circular of coil radius r, is

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• An electron (charge q coulomb) enters a magnetic field of H $weber/{m^2}$ with a velocity of $v\,m/s$ in the same direction as that of the field the force on the electron is

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• An arc of a circle of radius R subtends an angle $\frac{\pi }{2}$ at the centre. It carries a current i. The magnetic field at the centre will be

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• An electron is moving with a speed of ${10^8}\,m/\sec $ perpendicular to a uniform magnetic field of intensity B. Suddenly intensity of the magnetic field is reduced to B/2. The radius of the path becomes from the original value of r

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