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5 votes
How can a wire become magnetic?

add a resistor


point it north


heat it up


run a current through it

1 Answer

3 votes

Answer:

Moving electrons always create a magnetic field. Electrons moving along a wire make a magnetic field that goes in circles around the wire. When you bend the wire into a coil, the magnetic fields around each loop of the coil add up to make a long , thin magnet with north at one end and south at the other.

Step-by-step explanation: