A semicircular wire of radius 
is rotated with constant angular velocity 
about an axis passing through one end and perpendicular to the plane of the wire. There is a uniform magnetic field of strength B. The induced e.m.f. between the ends is:
A
B
C
is variable
D
none of these
Text Solution
Verified by ExpertsThe correct answer is:
B
effective length of the wire frame is 
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
An electric motor operating on a 60 Vdc supply draws a current of 10 A. If the efficiency of the mo…
A thin semicircular conducting ring of the radius is falling with its plane vertical in a horizont…
At a place the value of horizontal component of the earth's magnetic field is Weber . A metallic…
A circular loop of radius carrying current I lies in plane with its centre at origin. The total m…
Two identical circular loops of metal wire are lying on a table without touching each other. Loop-A…
A small square loop of wire of side l is placed inside a large square loop of wire of side . The l…