Question

question 14 of 20
what produces the magnetic field of an electromagnet?
a. electric charges moving within its coil of conducting wire.
b. the permanent magnet that acts as its metal core.
c. the resistance of its wire coil to an electric current.
d. electric charges moving within its metal core.

Explanation:

An electromagnet's magnetic field is generated by electric - current flow. Electric current is the movement of electric charges. In an electromagnet, electric charges move within the coil of conducting wire, creating a magnetic field. There is no permanent magnet as the core in a typical electromagnet setup, and resistance of the wire coil doesn't produce the magnetic field directly, and electric charges don't move within the metal core to create the main magnetic field.

Answer:

A. Electric charges moving within its coil of conducting wire.