Electromagnetic Induction

A conducting square loop initially lies in the XZ plane with its lower edge hinged along the X-axis. Only in the region y≥0, there is a time dependent magnetic field pointing along the Z-direction,

→

B

(t)=B0(cos‌ω‌t)

∧

k

, where B0 is a constant. The magnetic field is zero everywhere else. At time t=0, the loop starts rotating with constant angular speed ω about the X axis in the clockwise direction as viewed from the +X axis (as shown in the figure). Ignoring self-inductance of the loop and gravity, which of the following plots correctly represents the induced e.m.f. ( V ) in the loop as a function of time: