explain moving coil galvanometer. i am not able to grasp it

Asked by Akhil Mohan | 7th Sep, 2012, 10:11: PM

Expert Answer:

A moving coil Galvanometer is based on the magnetic properties of current.
It comparises of a current carrying coil suspended about its axis in a fixed magnetic field produced by an electromagnet. So as current passes through the galvanometer, the magnetic field made by the suspended coil interacts with the fixed magnetic field and tries to align itself with the fixed field.
So when the coil rotates a pointer attached with the coil shows the deviation in its position. This deviation is proportional with the magnitude of the current. When the current is flowed in the opposite direction, the deviation is showed in the opposite direction.

Answered by  | 7th Sep, 2012, 11:21: PM

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