Explain what is a Shunt?
Answers
In electronics, a shunt is a device which creates a low-resistance path for electric current, to allow it to pass around another point in the circuit. The origin of the term is in the verb 'to shunt' meaning to turn away or follow a different path.
In Physics,
Shunt is used to calibrate or extend the range of an ammeter (current meter).
In some high current applications the small added internal meter resistance will cause the circuit to behave differently than if the meter were not there (shorted out) so some low resistance is added in parallel with the meter.
It is not good practice to have high current running through wires from the circuit under test to the meter.
An ammeter is basically a voltmeter in parallel with a shunt, measuring I=v/R. With low “R,” “I” can become large for moderate “v.”
Hope it helps