What is the function of soft iron cylinder between the poles of a galvanmeter?

(a) How does a voltmeter differ from ammeter? (b) What is the main function of soft iron core used in a moving coil galvanometer?

Why is the pole pieces of a magnet are concave shaped in a moving coil galvanometer ? What is the role of soft iorn cylinder kept within the coil of the moving coil of the galvanometer ?

The purpose of soft iron cylinder between the pole pieces of the horse - shoe magnet in a moving coil galvanometer is

What are the advantagges of using soft iron as a core, instead of steel, in the coils of galvanometers?

What are the advantagges of using soft iron as a core, instead of steel, in the coils of galvanometers?