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The magnetic field strength of a solenoid can be increased by inserting which of the following materials as the core?(a) Copper(b) Silver(c) Iron(d) AluminiumI had been asked this question by my school principal while I was bunking the class.I want to ask this question from Magnetic Field of a Solenoid topic in portion Electromagnetism of Basic Electrical Engineering |
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Answer» RIGHT choice is (c) Iron Easy EXPLANATION: The Magnetic field of a solenoid increases when we insert an iron core because iron is a ferromagnetic MATERIAL and ferromagnetic materials help in INCREASING the magnetic property. |
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