EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Its magnetic field is strongest near its center.
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It is surrounded by a magnetic field.
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The north pole is stronger than the south pole.
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The south pole is stronger than the north pole.
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Detailed explanation-1: -Which of the following is true of a bar magnet? Its magnetic field is strongest near its center.
Detailed explanation-2: -The poles are regions where the magnet is strongest. The force that a magnet exerts is called magnetic force. The force is exerted over adistance and includes forces of attraction and repulsion. A magnet can exert force over a distance because the magnet is surrounded by a magnetic field.
Detailed explanation-3: -For a bar magnet, it always attracts iron and steel particles. While its like poles repel each other, unlike poles attract each other. When freely suspended, north pole of magnet points towards north pole of the earth. Since, they do not lose their magnetism they are known as permanent magnets.
Detailed explanation-4: -The correct answer is: Current carrying solenoid.