PHYS208 Fundamentals of Physics II

Hint for Ch. 31, 90P

a) Use the value for the magnetic field in a toroid in the expression for magnetic energy density.


b) The energy density should be integrated using circular strips of radius r, height h, and thickness dr, which has an infinitesimal volume of 2 pi r h dr.


Last updated Nov. 9, 1997.
Copyright George Watson, Univ. of Delaware, 1997.