Question Detail
Question
According to Lenz's Law, if the magnetic flux through a loop is decreasing, what kind of magnetic field does the induced emf create?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Page 9 states: 'Decreasing magnetic flux ⇒ emf creates additional magnetic field'. This additional field would be in the same direction as the original flux to oppose its decrease.
Hint
To 'oppose' a decrease, the induced field must try to reinforce the original field.