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Assertion :- If a steel core is used in a transformer in place of soft iron core then hysteresis losses are increased
Reason : Steel core is easily magnetised but it is not easily demagnetised by the alternating magnetic field.
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Important Questions on Matter and Magnetism
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Two/three/four identical bar magnets of magnetic moment are combined according to figure. Find the net magnetic moment of the system.
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Two/three/four identical bar magnets of magnetic moment are combined according to figure. Find the net magnetic moment of the system.
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Two/three/four identical bar magnets of magnetic moment are combined according to figure. Find the net magnetic moment of the system.
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Two/three/four identical bar magnets of magnetic moment are combined according to figure. Find the net magnetic moment of the system.
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A bar magnet of magnetic moment ’M’ is cuts into two equal parts in two fashions parallel to its length, then what happens to the magnetic moment.
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A bar magnet of magnetic moment ’M’ is cuts into two equal parts in following two fashions, Perpendicular to its length, then what happens to the magnetic moment of each part.
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When a magnetic needle placed in non uniform field the needle may experierces a :-
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A magnet of magnetic moment A–m2 placed along x-axis. Where magnetic field is tesla. The torque acting on magnet is :-
