Chemistry
Chemistry, 26.11.2020 07:00, chelsiem25

What can be done to remove a magnetic force around an electromagnet made of a coiled copper wire wrapped around an iron bar and connected to a
power source?
O A. Uncoil the wire.
B. Remove the iron bar.
C. There is always a small magnetic force around the wire.
D. Stop the current.

answer
Answers: 2

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