Define galvanometer
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Posted by Himanshi Monu 7 years, 2 months ago
- 2 answers
G K 7 years, 2 months ago
an instrument for detecting and measuring small electric currents.......
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Yogita Ingle 7 years, 2 months ago
A galvanometer is a device (instrument) used for detecting feeble electric voltage, currents in a circuit. It has a coil pivoted (or suspended) between concave pole faces of a strong laminated horse shoe magnet. When an electric current passes through the coil it deflects. Its deflection is noted by attaching a pointer to the coil (or by using a lamp and scale arrangement). The deflection is proportional to the current passed.
The galvanometer coil has a moderate resistance (about 100 ohms) and the galvanometer itself has a small current carrying capacity (1 mA).
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