Nonuniform resistivity
November-18-12
1:35 PM
A cylinder, or radius 1.25cm and length 2.0m is made of multiple
materials such that the resisitivity is nonuniform and given by
ρ(x)=a+bx, where a and b are constants. If the resistivity at one end is
20nΩm and at the other end is 40nΩm find the resistance of the
cylinder.
Chapter 27 Page 1
Resistance of cone
November-18-12
1:18 PM
A material of resistivity ρ is formed into the shape of a truncated
cone of altitude h. The right end has radius a and the left end has
radius c. Find the resistance between the two ends of the cone.
Chapter 27 Page 2