Physics, 19.11.2020 17:50 tddreviews
Which action is the best way to turn an electromagnet off?
A. Pull the central core out of the wire coil.
B. Make the wire coil around its central core colder or hotter.
C. Disconnect the wires between the wire coil and the battery.
D. Turn on the ammeter that is measuring electric current.
Answers: 1
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Which action is the best way to turn an electromagnet off?
A. Pull the central core out of the wire...
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