A circular loop of radius `r`, having `N` turns of a wire, is placed in a uniform and constant magnetic field `B`. The normal of the loop makes an angle `theta` with the magnetic that the angle `theta` is constant. Choose the correct statement from the following.

Options

A. (a) emf in the loop is `Nbomegar^(2)//2 cos theta`.
B. (b) emf induced in the loop is zero.
C. (c ) emf must be induced as the loop crosses magnetic lines.
D. (d) emf must not be induced as flux does not change with time.

Answer

B, D

Explanation

(b, d):
Flux remains constant here, so emf induced is zero.