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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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It attracts a metal striker, which then hits the bell.
When the doorbell button completes the circuit, current through the electromagnet creates a magnetic field that pulls a metal armature/striker toward the bell, producing the sound. (In some designs an interrupter contact causes repeated action for a buzzing ring.)
When the doorbell button completes the circuit, current through the electromagnet creates a magnetic field that pulls a metal armature/striker toward the bell, producing the sound. (In some designs an interrupter contact causes repeated action for a buzzing ring.)
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