Answer:
Option B,D
Explanation:
The net magnetic flux through that loops at time t is
\phi = B(2A-A)\cos\omega t=B\omega A \cos\omega t
So, \mid\frac{\text{d}\phi}{\text{d}t}\mid =BA \cos\omega t
\therefore \mid\frac{\text{d}\phi}{\text{d}t}\mid is maximum when \phi=\omega t = \frac{\pi}{2}
The emf induced in the smaller loop
εsmaller = -\frac{\text{d}}{\text{d}t}(BA \cos\omega t)=B\omega A\sin\omega t
\therefore Amplitude of maximum net induced in both the loops= Amplitudeof maximum emf induced the smaller loop alone.