Unformatted text preview: 3 x apart from an additive constant, which is independent of the orientation or position of the various constituent magnetized bodies. 5.22 Show that in general a long, straight bar of uniform crosssectional area A with uniform lenghwise magnetization M , when placed with its ﬂat end against an inﬁnitely permeable ﬂat surface, adheres with a force given approximately by F ’ μ 2 AM 2 Relate your discussion to the electrostatic considerations in Section 1.11. 5.27 A circuit consists of a long thin conducting shell of radius a and a parallel return wire of radius b on axis inside. If the current is assumed distributed uniformly throughout the cross section of the wire, calculate the selfinductance per unit length. What is the selfinductance if the inner conductor is a thin hollow tube?...
View
Full Document
 Fall '08
 Stephens,P
 Magnetism, Work, Magnetic Field, right circular cylinder, permanent magnetization M0, uniform lenghwise magnetization, ratios B/µ0 M0

Click to edit the document details