Question

The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time. $I_{1}$ and $I_{2}$ are the currents in the segments $ab$ and $cd$. Then,

• A. $I_{1}>I_{2}$
• B. $\quad I_{1} < I_{2}$
• C. $I_{1}$ is in the direction ba and $I_{2}$ is in the direction $c d$
• D. $I_{1}$ is in the direction $a b$ and $I_{2}$ is in the direction $dc$

Answer 1

Answer: (D)

According to Lenz’s law, current will be in anticlockwise sense as magnetic field is increasing into the plane of paper.