A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I1 at a distance d from the conductor as shown in figure. The loop will experience

Question

A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I1 at a distance d from the conductor as shown in figure. The loop will experience (A) a net repulsive force away from the conductor (B) a net torque acting upward perpendicular to the horizontal plane (C) a net torque acting downward normal to the horizontalplane (D) a net attractive force towards the conductor

Tardigrade Admin · Accepted Answer

F1 > F2 as F propto (1/d), and F3 and F4 are equal and opposite. Hence, the net attraction force will be towards the conductor.

Q. A square loop, carrying a steady current $I$ , is placed in a horizontal plane near a long straight conductor carrying a steady current $I_{1}$ at a distance d from the conductor as shown in figure. The loop will experience

a net repulsive force away from the conductor

a net torque acting upward perpendicular to the horizontal plane

a net torque acting downward normal to the horizontalplane

a net attractive force towards the conductor

$F_{1} > F_{2}$ as $F \propto \frac{1}{d}$ , and $F_{3}$ and $F_{4}$ are equal and opposite.
Hence, the net attraction force will be towards the conductor.

Q. A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I1​ at a distance d from the conductor as shown in figure. The loop will experience