Which instrument is used to know the presence | vedclass

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(B) $Galvanometer$ is an electromechanical instrument used for detecting and indicating an electric current. It works on the principle that a magnetic

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Galvanometer

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(B) $Galvanometer$ is an electromechanical instrument used for detecting and indicating an electric current. It works on the principle that a magnetic field exerts a torque on a current-carrying coil placed within it. When a small current flows through the coil,it deflects,indicating the presence and direction of the current. In contrast,a $Voltmeter$ measures potential difference,a $Fuse$ is a safety device,and a $Battery$ is a source of electric energy.

Which instrument is used to know the presence of an electric current in a circuit?

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