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OpenStudy (anonymous):
Which of the following is a magnet only when a current is present? A. permanent magnet B. electromagnet C. magnetic domain D. magnetic pole
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OpenStudy (anonymous):
B-electromagnet :)
OpenStudy (anonymous):
electro meaning electricity so it definetely needs current to activate :)
OpenStudy (anonymous):
anwer ur question :)?
OpenStudy (anonymous):
yes it did thnk u. ;)
OpenStudy (anonymous):
no problemo :)
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