Biology, 01.12.2019 11:31, blueboy58

Why is an electromagnet a temporary magnet?

a. an electromagnet cannot be turned on and off.

b. an electromagnet is a magnet when no current flows through the wire. the electromagnet no longer acts as a magnet when current flows through the wire.

c. an electromagnet is only a magnet if a current flows through the wire continuously.

d. an electromagnet becomes a magnet when a current flows through the wire. an electromagnet no longer acts as a magnet when the current flow stops.

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Why is an electromagnet a temporary magnet?

a. an electromagnet cannot be turned on and...