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d’Arsonval galvanometer

instrument

Quick Summary

The d'Arsonval galvanometer is a type of instrument used to measure small electrical currents. It features a moving coil suspended between the poles of a strong permanent magnet.12

When an electrical current passes through the coil, it generates a magnetic field that interacts with the permanent magnet's field. This interaction creates a torque, causing the coil to rotate. An attached needle or mirror indicates the angle of rotation, which is proportional to the current's strength. This deflection allows for the measurement of the electrical current.2

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  1. d'arsonval galvanometer
  2. galvanometer

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