MCQ
Suppose a long rectangular loop of width $w$ is moving along the $x$-direction with its left arm in a magnetic field perpendicular to the plane of the loop (see figure). The resistance of the loop is zero and it has an inductance $L$. At time, $t=0$, its left arm passes the origin, $O$. If for $t \geq 0$, the current in the loop is $I$ and the distance of its left arm from the origin is $x$, then $I$ versus $x$ graph will be
- A
- ✓
- C
- D
