EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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On the ends of the bar magnet
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On the top of the bar magnet
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On the bottom of the bar magnet
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The bar magnet does not have a magnetic field.
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Detailed explanation-1: -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-2: -The strength of the bar magnet is maximum at the ends of the magnet. The ends of the magnet where the strength of the magnet is highest are called the poles of a magnet. The bar magnet has two poles: North pole and South pole at its ends.
Detailed explanation-3: -The magnetic fields are strongest near the poles of a bar magnet, because the magnetic field lines are most dense near the poles. Magnetic field lines are the invisible lines of force that move through and around the magnet.
Detailed explanation-4: -A bar magnet has two magnetic poles: north pole and south pole. As the distance from the pole increases, the density of the magnetic force of lines decreases. Hence the magnetic force of lines is more crowded at the poles compared to the center of the magnet.