A circular coil of area 
and 20 turns is kept in magnetic field of flux density 
. It rotates from a position where its plane makes an angle of 
with the field to a position perpendicular to the field in a time 0.2 s. Find the magnitude of the emf induced in the coil due to its rotation.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Given, area of coil,
Number of turns, 
Magnetic field, 
Initially angle between Normal and B is 
From Faraday's Law
Induced emf, 
Using 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The total emf induced in a closely would coil of turns in which the magnetic flux linked with the …
The Lenz law is associated with
When a current ' ' through a solenoid is increasing at a constant rate then the induced current is
A wheel of 20 metallic spokes each long is rotated with a speed of in a plane normal to the horiz…
The magnetic flux through the triangular loop shown in the figure below:
where a uniform magnetic …
A wire loop of area has a resistance of . A magnetic field pointing normal to the loop has a magn…