An iron atom has a magnetic dipole moment of about 1.8×10^−23A⋅m2.
Part A
Determine the dipole moment of an iron bar 9.9 cm long, 1.3 cm wide, and 1.0 cm thick, if it is 100 percent saturated.
Express your answer using two significant figures.
Part B
What torque would be exerted on this bar when placed in a 0.80-T field acting at right angles to the bar?
Express your answer using two significant figures.