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An electromagnet needs a magnetic metal core. To produce a magnetic field, what else is required? A second metal core? A solenoid with current or no current running through it? …

An electromagnet needs a magnetic metal core. To produce a magnetic field, what else is required? A second metal core? A solenoid with current or no current running through it? …
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An electromagnet needs a magnetic metal core. To produce a magnetic field,

what else is required?

A second metal core?
A solenoid with current or no current running through it? Or a permanent magnet?

User Carsten Kuckuk
by
8.3k points

2 Answers

1 vote
A second metal core i think
User Jhonnatan
by
8.4k points
5 votes

Answer:solenoid with current running through it

Explanation:just took the test

User Yuri Malov
by
8.4k points
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