Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

A voltage signal of RMS value 220 volts passes through an inductor of value 44 mH. What will be the maximum value of current possible if current changes its direction 50 times in a second?

Options:

16 A

22.5 A

47 A

20 A

Correct Answer:

22.5 A

Explanation:

Vpeak = 1.414 Vrms = 1.414 x 220 V = 311 V

Ipeak = Vpeak/wL = 311 V/ (2\(\pi \) x 50 x 44 mH)

         = 22.5 A