Question

A conducting loop in the form of a circle is placed in a uniform magnetic field with its plane perpendicular

Answer 1

Answer:

ϕ= B.A =BAcosθ

where ϕ=magnetic flux, B=magnetic field and

A =area vector

The e.m.f. is induced only when the flux linked with the coil changes.

Since, field is constant , flux can be changed either by changing A or θ.

Hence, answer are option-(C) and (D).