Physics - Magnetism Question with Solution | TestHub

Figure shows a conducting loop$\mathrm{A}\mathrm{B}\mathrm{C}\mathrm{D}\mathrm{A}$placed in a uniform magnetic field$B$perpendicular to its plane. The part$\mathrm{A}\mathrm{B}\mathrm{C}$is the${\left(\frac{3}{4}\right)}^{\mathrm{t}\mathrm{h}}$the portion of the square of side length$l$. The part$\mathrm{A}\mathrm{D}\mathrm{C}$is a circular arc of radius$R$. The point$\mathrm{A}$and$\mathrm{C}$are connected to a battery which supplies a current$I$to the circuit. The magnetic force on the loop due to the field$B$is