Physics
Physics, 08.12.2020 17:50, arifkarimi9214

To change the polarity of an electromagnet, you would: A. Reverse the current's direction
B Remove the iron core from within the coil of wire
C Turn the battery, or other power source, upside-down
D Change the composition of the iron core

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To change the polarity of an electromagnet, you would: A. Reverse the current's direction
B Re...

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