Question

What can be increased in order to increase the magnetic field?

Answer 1

What equations do you know of that contain these quantities ? List any you know.

Answer 2

The size of the iron core


The magnetic poles


The wire resistance


The current

options^

Answer 3

the current :P

Answer 4

How does a generator use electromagnetic induction?

Answer 5

There is a motor in a generator which carries out this electromagnetic induction,as we switch on the generator the magnetic field lines between that motor get cuts off by the rotating coil which cause change in flux and change in flux cause induced emf,cue to emf at different points of coil cause current to get flow and then generator will get on.