Technician A says that the more rapid the decrease in the current flow through an inductor, the higher the amplitude of the reverse-polarity voltage that is developed across the inductor. Technician B says that an oscilloscope can be used to display a changing voltage with respect to time. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because a rapid decrease in current through an inductor induces a higher reverse-polarity voltage due to Lenz's Law. Technician B is correct because an oscilloscope is designed to display voltage changes over time.

Technician a Says That the More Rapid the Decrease in the Current