Galvanometer definition
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Posted by Deepshikha Kumari 6 years, 1 month ago
- 4 answers
Yogita Ingle 6 years, 1 month ago
- Moving coil galvanometer is an electromagnetic device that can measure small values of current. It is also known as Weston galvanometer.
- It works on the principle that when a current loop is placed in an external magnetic field, it experiences torque, and the value of torque can be changed by changing the current in the loop
- Moving coil galvanometer consists of permanent horse-shoe magnets, coil, soft iron core, pivoted spring, non-metallic frame, scale and pointer
- We know that a current loop having N number of turns,and the cross sectional area A, carrying current i, when placed in and along the direction of external magnetic field B, experiences a torque given by:
ԏ = NiAB
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Mohit Yadav 6 years, 1 month ago
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