Question

Calculate the value of Vpeak if crest factor=47 and Vr.m.s=6 V.

(a) 282 V

(b) 300 V

(c) 290 V

(d) 286 V

This question was posed to me in a national level competition.

My doubt is from Solid-State Devices topic in division Introduction to Solid-State Devices of Electric Drives

Answer 1

Correct choice is (a) 282 V

The explanation is: The value of the crest factor is Vpeak÷Vr.m.s. The value of Vpeak is (crest factor) × Vr.m.s = 47×6 = 282 V. It signifies the ratio of Vpeak and Vr.m.s.