Question

A student was performing an experiment using solenoid, a battery, ammeter, voltmeter, two coils and a cylindrical core. a) When will the magnetic field produced by a solenoid maximum? b) If the two coils coil A and coil B are wound on a cylindrical core and coil B is connected to a battery through a key and coil A is connected to a galvanometer, when will the galvanometer show deflection? c) What is an electromagnet? d) What are the uses of electromagnets?​

Answer 1

Explanation:

Moving coil galvanometer is an electromagnetic device that can measure small values of current. It consists of permanent horseshoe magnets, coil, soft iron core, pivoted spring, non-metallic frame, scale, and pointer.