A 50 cm long wire carrying a current of 500 mA is bent to form a rectangular coil of breadth 5 cm. When the rectangular coil is placed on its long side perpendicular to the uniform magnetic field of 1.5 tesla, the torque experienced is ______.
1
18.75 × 10-3 N m
2
33.75 × 10-3 N m
3
7.50 × 10-3 N m
4
3.75 × 10-3 N m