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The instrument used for detecting the presence of electric current in a circuit is

Options

  1. ARefractometer
  2. BGalvanometer
  3. CViscometer
  4. DDiffractometer

Correct answer

B. Galvanometer

Step-by-step solution

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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