What does Kang copper wire do in the circuit?
Interested, you can open the digital multimeter to see. The large current block (10A or 20A block) of this kind of meter is usually made of Kang copper wire as sampling resistance, and its resistance is generally 0.01 euro.
This is usually a sampling of the load current. For example, some regulated power supply can display the magnitude of the load current, then you can use Kang copper wire to achieve.
The copper wire has a small temperature coefficient and a stable resistance. It is usually used as a sampling resistor of an ammeter.
