Question

what is a galvanometer? How does it work?​

Answer 1

Answer:

an instrument for detecting and measuring small electric currents.

Answer 2

Answer:

The galvanometer is the device used for detecting the presence of small current and voltage or for measuring their magnitude. The galvanometer is mainly used in the bridges and potentiometer where they indicate the null deflection or zero current They were the first instruments used to detect and measure small amounts of electric currents.

The galvanometer has following applications. They are

• It is used for detecting the direction of current flows in the circuit. It also determines the null point of the circuit. The null point means the situation in which no current flows through the circuit.
• The voltage between any two points of the circuit is also determined through galvanometer.
• It is used for measuring the current.  

A galvanometer is an electromechanical instrument used for detecting and indicating an electric current. 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.

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