Question
Download Solution PDFThe instrument that is based on the principle that when an electric current flows in a coil placed in a magnetic field, a deflecting torque acts upon the coil is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
A galvanometer is a device that is used to detect a small electric current or measure its magnitude. The current and its intensity are usually indicated by a magnetic needle’s movement or that of a coil in a magnetic field.
A moving coil galvanometer is an instrument which is used to measure electric currents. It is a sensitive electromagnetic device which can measure low currents even of the order of a few microamperes.
A current-carrying coil, when placed in an external magnetic field, experiences magnetic torque. The angle through which the coil is deflected due to the effect of the magnetic torque is proportional to the magnitude of current in the coil.
Hence, the correct answer is Option-3-moving coil galvanometer.
Last updated on May 26, 2025
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