A Flexible,circular Conducting Loop of Radius 0

Multiple Choice

A flexible,circular conducting loop of radius 0.15 m and resistance 4.0 lies in a uniform magnetic field of 0.25 T.The loop is pulled on opposite sides by equal forces and stretched until its enclosed area is essentially zero m²,as suggested in the drawings.It takes 0.30 s to close the loop.

-Determine the magnitude of the emf induced in the loop.

A) 1.2 × 10^-¹ V
B) 1.8 × 10^-² V
C) 1.8 × 10² V
D) 5.9 × 10^-² V
E) 5.9 × 10² V