Question

how is magnetic field produced in a electric motor​

Answer 1

An electric motor converts electrical energy into physical movement. Electric motors generate magnetic fields with electric current through a coil. The magnetic field then causes a force with a magnet that causes movement or spinning that runs the motor.

Answer 2

Hey friend!

Here is your answer:

There are bar magnets or (usually) horseshoe magnets which are kept opposite to each other beside the armature which produce magnetic field.

Please refer to the diagram of the electric motor for further knowledge.

I hope it helps you and if you appreciate my answer, please do respond with a thanks