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An electromagnet needs a magnetic metal core. To produce a magnetic field, what else is required? A. A permanent magnet B. A solenoid with current running through it C. A second metal core D. A solenoid
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11 votes
An electromagnet needs a magnetic metal core. To produce a magnetic field, what else is required?

A. A permanent magnet
B. A solenoid with current running through it
C. A second metal core
D. A solenoid with no current running through it ​

User Matthew Feickert
by
5.4k points

2 Answers

8 votes

Answer:

b

Step-by-step explanation:

User Mohamed Karkotly
by
5.3k points
11 votes

Answer:

B

Step-by-step explanation:

A solenoid is the wraps of conducting wire wrapped around the metal core .

User AlaskaJoslin
by
6.1k points
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