MCQ
The magnetic field energy in an inductor changes from maximum value to minimum value in 10 ms, when connected to an a.c. source. The frequency of the source is ______.
  • 25 Hz
  • B
    50 Hz
  • C
    500 Hz
  • D
    200 Hz

Answer

Correct option: A.
25 Hz
A

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free