GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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zero
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minimum
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maximum
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minimum or maximum
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Detailed explanation-1: -The magnetic field at the center of a bar magnet is zero in ideal case. The field lines near the center is parallel to the bar magnet. The density of the field lines is maximum at the poles of the bar magnet and zero at the center which means that the magnitude of the magnetic field is small at the center.
Detailed explanation-2: -The correct answer is zero. Magnetism at the centre of Bar magnet is zero.
Detailed explanation-3: -The two ends of the bar magnet exert the maximum magnetic force. It is equally strong at the north pole and the south pole. The force exerted by the middle of the magnet is weaker.
Detailed explanation-4: -In the case of static charges, the total magnetic force is zero.
Detailed explanation-5: -Magnetic strength of a magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.