Question 580: Current Electricity

Question

In moving coil galvanometer, strong horse shoe magnet of concave shaped pole pieces is used to

Accepted Answer

The horseshoe magnet has cylindrically concave pole-pieces. Due to its shape the magnet produces radial magnetic field, so that when the coil rotates in any position its plane is always parallel to the direction of the magnetic field. This has been shown in the figure given below.

Answer

increase space for rotation of coil

Answer

reduce weight of galvanometer

Answer

produce magnetic field which is parallel to plane of coil at any position

Answer

make magnetic induction weak at the centre.

Current Electricity

In moving coil galvanometer, strong horse shoe magnet of concave shaped pole pieces is used to

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