MDCAT Physics MCQ #81

MDCAT Physics MCQ #81

1. Question 1

   Q1. Why is the average power in a pure inductor zero over a full cycle?

   • A) The inductor stores energy during one half-cycle and returns it in the next.
   • B) Inductive reactance blocks all current.
   • C) Voltage and current are in phase.
   • D) Magnetic field strength remains constant.

   Answer: The inductor stores energy during one half-cycle and returns it in the next.

   Explanation: Energy oscillates between the inductor and source. B is incorrect because reactance allows current to flow.