jessicatatro23 jessicatatro23

09-06-2022
Physics

contestada

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

Respuesta :

jsimpson11000 jsimpson11000

09-06-2022

Answer:

B

Explanation:

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

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