Chapter 5 Magnetism and Matter – HI MCQ!

A magnet can be completely demagnetised by?

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A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It will?

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Which of the following is responsible for the earth’s magnetic field?

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One can define …….. of a place as the vertical plane which passes through the imaginary line joining the magnetic North and the South–poles.?

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Let the magnetic field on earth be modelled by that of a point magnetic dipole at the centre of earth. The angle of dip at a point on the geographical equator is?

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Which of the following independent quantities is not used to specify the earth’s magnetic field?

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A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis. Of the following physical quantities the one which remains unchanged is?

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The material suitable for making electromagnets should have?

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On cutting a solenoid in half, the field lines remain ……….. emerging from one face of the solenoid and entering into the other face.?

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S is the surface of a lump of magnetic material.?

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