The magnitude of the dipole moment associated with an atom of iron in an iron bar is 2.1
Chapter 32, Problem 48(choose chapter or problem)
The magnitude of the dipole moment associated with an atom of iron in an iron bar is 2.1 1023 J/T. Assume that all the atoms in the bar, which is 5.0 cm long and has a cross-sectional area of 1.0 cm2 , have their dipole moments aligned. (a) What is the dipole moment of the bar? (b) What torque must be exerted to hold this magnet perpendicular to an external field of magnitude 1.5 T? (The density of iron is 7.9 g/cm3 .)
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer