A current carrying squre loop is placed near an infinitely long current carrying wire as shown in figure . The loop torque acting on the loop is

Options

A. `(mu_0il)/(4π)ln(b/a)`
B. `(mu_0i)/(2π)ln(a/b)`
C. `(mu_0i)/(2πl)ln((a+b)/a)`
D. `(mu_0il)/(2π)ln((a+b)/a)`

Answer

D