Acircular coil 18.0 cm in diameter and containing nine loops lies flat on the ground. the earth's magnetic field at this location has magnitude 5.50×10−5t and points into the earth at an angle of 54.0 ∘ below a line pointing due north. a 6.30-a clockwise current passes through the coil. part a determine the torque on the coil. express your answer using three significant figures and include the appropriate units.