Physics 1215
Group Problem
Solve one of the two problems below.
1. The figure to the right shows a cross section of a long
cylindrical conductor of radius a containing a long cylindrical
hole of radius b. The axes of the cylinder and hole are parallel
a
b
Physics 1215
Group Problem
In the last two days we have introduced a new force: the magnetic force that affects currentcarrying wires and moving charged particles. The following two problems use skills that are
necessary to solve problems involving this f
Physics 1215
Group Problem
A very long cylindrical shell of radius a shares the same axis with another long cylindrical shell
of radius b, b>a. The inner shell has a total charge per unit area of =q/A, while that of the outer
shell is =q/A. Both charges a
Physics 1215
Group Problem
a) Your friend is not convinced that entropy must increase in every situation. To prove to you that he is
right, he pours 240 g of water at 100C into an insulated 150-g aluminum cup at 20C. The water
cools down somewhat and your