How does a digital multimeter measure a short circuit
First insert the black test lead into the COM public port, and the red test lead into the VΩ HZ jack; then turn the rotary switch to the buzzer position, and connect the two test leads to both ends of the circuit. If the buzzer alarms, it means that the circuit is short-circuited. This measurement method can also be used to measure the on-off of the fuse, the quality of the diode, etc.
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