Computer Science - Electronic Principles - Discussion

Discussion Forum : Electronic Principles - Section 2 (Q.No. 21)

Electronic Principles

21.

Which one of the following principles best describes the basic operation of an electromagnet?

Current is induced in a conductor that is moving through a magnetic field

Like magnetic poles repel, while unlike poles attract

Current flowing through a conductor generates a magnetic field

Like magnetic poles attract, while unlike poles repel

None of the above

Answer: Option

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