The magnetic field in any region is given by B = B_0(2+x/a) k. A square loop of edge length ' l ' is placed with its edge along x and y axis. The…

The magnetic field in any region is given by $\displaystyle \overrightarrow{\mathrm{B}}=\mathrm{B}_0\left(2+\frac{\mathrm{x}}{\mathrm{a}}\right) \hat{\mathrm{k}}$. A square loop of edge length ' $\displaystyle l$ ' is placed with its edge along x and y axis. The loop is moved with a constant velocity $\displaystyle \overline{\mathrm{v}}=\mathrm{v}_0 \hat{\mathrm{i}}$. The emf induced in the loop will be -