What is Galvanometer?

What is Galvanometer?

Galvanometer

A galvanometer is an electromechanical instrument used for detecting and indicating electric current. 
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A galvanometer works as an actuator, by producing a rotary deflection (of a "pointer"), in response to electric current flowing through a coil in a constant magnetic field. Early galvanometers were not calibrated, but their later developments were used as measuring instruments, called ammeters, to measure the current flowing through an electric circuit.


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