As an externally generated magnetic field through a certain conducting loop increases in magnitude, the field produced at points inside the loop by the current induced in the loop must be:
A)increasing in magnitude
B)decreasing in magnitude
C)in the same direction as the applied field
D)directed opposite to the applied field
E)perpendicular to the applied field

Question

Quizplus · Accepted Answer

According to Lenz's law, the direction of the induced current is such that it opposes the change in the magnetic field that produced it. Therefore, as the externally generated magnetic field through the conducting loop increases in magnitude, the induced current in the loop produces its own magnetic field in the opposite direction to oppose the increase in the external magnetic field. This means that the field produced at points inside the loop by the induced current is directed opposite to the applied field.

As an Externally Generated Magnetic Field Through a Certain Conducting