Non-Contact Forces Unit Test
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Question
Hal makes an electromagnet with a 9-volt battery, wire, and a steel rod. What is the function of electric current in his electromagnet? (1 point)
Responses
Electric current attracts or repels charged objects.
Electric current attracts or repels charged objects.
Electric current creates a magnetic field that charges the rod.
Electric current creates a magnetic field that charges the rod.
Electric current determines the strength of the magnet.
Electric current determines the strength of the magnet.
Electric current powers the electromagnet.