What is the use of the flexible strip in an electric door bell? What will happen if the strip loses its flexibility?
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"Due to the flexible strip, the circuit is made and broken alternately and the bell continues to ring while the switch is closed.
If the strip loses its flexibility, if the circuit breaks and the electromagnet loses its magnetism, it does not return to its normal contact position with the screw.
Therefore, the circuit is not completed and the bell is not ringing."
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