Why is an electromagnet a temporary magnet?
a. an electromagnet cannot be turned on and...
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.
Answers: 1
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