Question

A rectangular current loop is located near a long, straight wire that carries a current of I_W = 11 A (see the drawing). The current in the loop is I_L = 30 A. Determine the magnitude of the net magnetic force that acts on the loop.

Answer 1

Here ,

L = 0.50 m

d = 0.11 m

x = 0.15 m

for the net force on the loop

Fnet = u0 * I1 * I2*L/(2pi) * (1/(d) - 1/(d + x))

Fnet = 4pi *10^-7 * 11 * 30 * 0.50/(2pi) * (1/0.11 - 1/(0.11 + 0.15))

Fnet = 1.73 * 10^-4 N

the net force acting on the loop is 1.73 * 10^-4 N