Question

Explain the action of shunt.

Answer 1

Hi friend,
The shunt is a low resistance connected in parallel to a galvanometer to protect if from the strong currents in the circuit .The Galvanometer shows full scale deflection  with a very small current. If the whole of the strong current in an electric circuit passes through galvanometer, it may get damaged. The shunt allows only a small part of the current to flow through the galvanometer by acting as a by pass to the major part of the current.
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Answer 2

a shunt is a device which allows electric current to pass around another point in the circuit by creating a low resistance path