Home › CBSE Class 12 (Science) › Physics › Electromagnetic Induction › A generator coil turns at 50 revolutions per sec…
A generator coil turns at 50 revolutions per second. How long does one full cycle of its emf last?
A0.02 s
B0.20 s
C0.50 s
D0.05 s
Answer & Solution
Correct answer: A. 0.02 s
The emf repeats once per revolution, so the period is 1/50 = 0.02 s.
Related questions
What are the dimensions-based units of emf, as listed for electromotive force?Induced emf in a loop is what when the flux through it stays constant?A generator coil's plane is perpendicular to the field. What is the emf then?In an ac generator, the angle between B and the coil's area vector at time t is wt. What iThe speed of rotation of an ac generator coil is doubled, other things equal. How does theA coil has 50 turns, area 0.02 square metre, in a 0.4 T field, rotating at 100 rad/s. WhatA coil of N turns, area A rotates at n revolutions per second in a field B. What is the maHow are the ends of the coil of an ac generator joined to the external circuit?