PLEASE ANSWE
How is an electromagnet different from a bar magnet?
A. Only an...
Chemistry, 16.03.2020 18:43 lalisa6745
PLEASE ANSWE
How is an electromagnet different from a bar magnet?
A. Only an electromagnet attracts materials made of iron.
B. A bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core.
C. An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.
D. Only a bar magnet has a real magnetic field.
Answers: 2
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