Question

5
A good electromagnet would-
act like a magnet when the current is 'ON' but would not do so when the
current is 'OFF!
not act like a magnet when the current is 'ON' but acts like one when the
current is 'OFF:
act like a magnet both when the current is 'ON' or is 'OFF'.
not act like a magnet both when is current is 'ON' or is 'OFF'.​

Answer 1

Answer:

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