{"id":19055,"date":"2024-04-15T05:34:16","date_gmt":"2024-04-15T05:34:16","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19055"},"modified":"2024-04-15T05:34:16","modified_gmt":"2024-04-15T05:34:16","slug":"which-one-of-the-following-principles-best-describes-the-basic-operation-of-an-electromagnet-a-current-is-induced-in-a-conductor-that-is-moving-through-a-magnetic-field-b-like-magnetic-poles-repel","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-principles-best-describes-the-basic-operation-of-an-electromagnet-a-current-is-induced-in-a-conductor-that-is-moving-through-a-magnetic-field-b-like-magnetic-poles-repel\/","title":{"rendered":"Which one of the following principles best describes the basic operation of an electromagnet? A. Current is induced in a conductor that is moving through a magnetic field B. Like magnetic poles repel, while unlike poles attract C. Current flowing through a conductor generates a magnetic field D. Like magnetic poles attract, while unlike poles repel E. None of the above"},"content":{"rendered":"

[amp_mcq option1=”Current is induced in a conductor that is moving through a magnetic field” option2=”Like magnetic poles repel, while unlike poles attract” option3=”Current flowing through a conductor generates a magnetic field” option4=”Like magnetic poles attract, while unlike poles repel E. None of the above” correct=”option3″]<\/p>\n

The correct answer is C. Current flowing through a conductor generates a magnetic field.<\/p>\n

An electromagnet is a device that uses electricity to create a magnetic field. The magnetic field is created by the flow of current through a coil of wire. The strength of the magnetic field is proportional to the amount of current flowing through the coil.<\/p>\n

Option A is incorrect because it describes the principle of electromagnetic induction. Electromagnetic induction is the process by which a voltage is induced in a conductor when it is moving through a magnetic field.<\/p>\n

Option B is incorrect because it describes the principle of magnetism. Like magnetic poles repel, while unlike poles attract.<\/p>\n

Option D is incorrect because it is the opposite of the principle of magnetism. Like magnetic poles attract, while unlike poles repel.<\/p>\n

Option E is incorrect because it is not one of the principles that best describes the basic operation of an electromagnet.<\/p>\n","protected":false},"excerpt":{"rendered":"

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