SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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STRENGTH OF ELECTROMAGNET CAN BE INCREASED BY INTRODUCING A SOFT IRON CORE .
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OUTSIDE THE COIL
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INSIDE THE COIL
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ROUND THE COIL
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ABOVE THE COIL
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Explanation:
Detailed explanation-1: -As the soft iron core is a highly ferromagnetic material, It allows (and attracts) the magnetic field lines to pass through it. When such material is used in the electromagnet, the magnetic field lines passing through it increases, thereby, the strength of the electromagnet increases.
Detailed explanation-2: -An electromagnet is a wound coil of conductive wire with an iron core. A magnetic field occurs around the conductive wire when powered and the effect is amplified by the coil winding. Increasing the number of windings will increase the strength of the magnet. The iron core amplifies the magnetic flux of the coil.
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