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Biology, 01.09.2019 21:10, royaltyjl11
What is the function of an electromagnet in an electric doorbell?
it acts as a switch to open the circuit.
it acts as a switch to close the circuit.
it repels a metal striker, which then pulls away from the bell.
it attracts a metal striker, which then hits the bell.
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Answers: 1
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What is the function of an electromagnet in an electric doorbell?
it acts as a switch to open...
it acts as a switch to open...
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