How is an electromagnet different from a bar magnet?
a) only a bar magnet has a magnetic fiel...
Physics, 13.10.2019 12:30 thevampsrock3
How is an electromagnet different from a bar magnet?
a) only a bar magnet has a magnetic field.
b) only an electromagnet attracts materials made of iron.
c) an electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.
d) a bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core.
Answers: 2
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