Question

Medal

How can electric charges be used to create a magnetic field?

A.
A magnetic field forms around a moving electric charge, so an electric current can be used to make a magnetic field.

B.
It is not possible to create a magnetic field using electric current; a magnetic field can only be created from another magnetic field.

C.
A magnetic field forms around a stationary electric charge, so an electric current can be used to make a magnetic field.

D.
A magnetic field forms around a dipolar electric charge, so an electric current can be used to make a magnetic field.

Answer 1

a magnetic field is created by moving electron or electric current...
don't ask for reason.. its like gravity you have to accept it :P

Answer 2

thnx

Answer 3

:)