Respuesta :

Galvanometer is a instrument used to measure small current

Explanation :

An instrument used to detect small currents is a galvanometer. It shows the deflection in its needle when a current flows through the circuit.

It is also used to find the null point in the circuit. Null point means when there is no current in the circuit.

It can be used to find the potential difference between any two points.

So, the correct option is (A) " galvanometer ".                                                                    

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