A magnetic field forms around a moving electric charge, resulting in a magnetic field.
Which does this describe?
A.
how electric charges can be used to make current flow
B.
how electric charges can be used to create a magnetic field
C.
how a magnetic field can be used to generate an electric current
D.
how a magnetic field can be used to generate electrons
Which does this describe?
A.
how electric charges can be used to make current flow
B.
how electric charges can be used to create a magnetic field
C.
how a magnetic field can be used to generate an electric current
D.
how a magnetic field can be used to generate electrons