What is the magnitude of the magnetic field at point B produced by a current I if the magnitude of the field at point A is B0?
A)B0
B)2B0
C)4B0
D)B0/2
E)B0/4
1 answer
a
A)B0
B)2B0
C)4B0
D)B0/2
E)B0/4
1 answer