Question

a semicircular loop of radius R rotated with an angular velocity w perpendicular to the plane of magnetic field. emf induced in the loop is​

Answer 1

Answer

1/2Bw^2R^2

Explanation:

induced emf= -dФ/dt

E=Blv

d(B r^2∅/2)

Br^2/2 d∅/dt

=1/2 Br^2 w