A long conducting wire AH is moved over a conducting triangular wire CDE with a constant velocity v in a uniform magnetic field $\overrightarrow{B}$directed into the plane of the paper. Resis­tance per unit length of each wire is r. Then

Magnetic flux in${\displaystyle \otimes }$ direction through the coil is increasing. Therefore, induced current will produce magnetic field in ${\displaystyle \odot }$ direction. Thus, the current in the loop is anticlockwise. Magnitude of induced current at any instant of time is ${\displaystyle I=\frac{e}{R}=\frac{Bv\left(FG\right)}{\rho (FG+GD+DF)}}$ When the wire ${\displaystyle AH}$ moves downwards,  ${\displaystyle FG,GD\text{and}DF}$ all increase in the same ratio. Therefore, ${\displaystyle i}$ is constant.