Chapter 4 Moving Charges and Magnetism – Page 3 – HI MCQ!

A circular coil of radius 4 cm and of 20 turns carries a current of 3 amperes. It is placed in a magnetic field of intensity of 0.5 weber/m². The magnetic dipole moment of the coil is?

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Magnetic dipole moment of a rectangular loop is?

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An electron is projected along the axis of a circular conductor carrying the same current. Electron will experience?

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The magnetic moment of a circular coil carrying current is?

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Which one of the following is correct statement about magnetic forces?

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Two free parallel wires carrying currents in the opposite directions?

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A charged particle is moving in a cyclotron, what effect on the radius of path of this charged particle will occur when the frequency of the ratio frequency field is doubled?

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A proton and an alpha particle both enter a region of uniform magnetic field B, moving at right angles to field B. If the radius of circular orbits for both the particles is equal and the kinetic energy acquired by proton is 1 MeV the energy acquired by the alpha particle will be?

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The conversion of a moving coil galvanometer into a voltmeter is done by?

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Two a-particles have the ratio of their velocities as 3 : 2 on entering the field. If they move in different circular paths, then the ratio of the radii of their paths is?

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