Electromagnetic Induction

A region in the form of an equilateral triangle (in x−y plane) of height L has a uniform magnetic field

→

B

pointing in the +z -direction. A conducting loop PQR , in the form of an equilateral triangle of the same height L, is placedinthe x−y plane with its vertex P at x=0 in the orientation shown in the figure. At t=0 , the loop starts entering the region of the magnetic field with a uniform velocity

→

v

along the +x -direction. The plane of the loop and its orientationremainunchanged throughout its motion.

Which of the following graph best depicts the variation of the induced emf (E) in the loop as a function of the distance (x) starting from x=0 ?