Questions from Modern Physics

Q: A small conducting spherical shell with inner radius a and outer radius

A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d (Fig. P22.45). The inner shell h...

Q: Repeat Problem 22.45, but now let the outer shell

Repeat Problem 22.45, but now let the outer shell have charge -2q. The inner shell still has charge +2q. Problem 22.45: A small conducting spherical shell with inner radius a and outer radius b is c...

Q: A solid conducting sphere with radius R carries a positive total charge

A solid conducting sphere with radius R carries a positive total charge Q. The sphere is surrounded by an insulating shell with inner radius R and outer radius 2R. The insulating shell has a uniform c...

Q: An insulating hollow sphere has inner radius a and outer radius b

An insulating hollow sphere has inner radius a and outer radius b. Within the insulating material the volume charge density is given by

Q: Early in the 20th century, a leading model of the structure

Early in the 20th century, a leading model of the structure of the atom was that of English physicist J. J. Thomson (the discoverer of the electron). In Thomson’s model, an atom cons...

Q: Using Thomson’s (outdated) model of the atom described in Problem

Using Thomson’s (outdated) model of the atom described in Problem 22.50, consider an atom consisting of two electrons, each of charge -e, embedded in a sphere of charge +2e and radiu...

Q: (a). How many excess electrons must be distributed uniformly within

(a). How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 30.0 cm in diameter to produce an electric field of magnitude 1390 N/C just outside the sur...

Q: Because the charges on the electron and proton have the same absolute

Because the charges on the electron and proton have the same absolute value, atoms are electrically neutral. Suppose that this is not precisely true, and the absolute value of the charge of the electr...

Q: A nonuniform, but spherically symmetric, distribution of charge has a

A nonuniform, but spherically symmetric, distribution of charge has a charge density r1r2 given as follows: where

Q: A slab of insulating material has thickness 2d and is oriented so

A slab of insulating material has thickness 2d and is oriented so that its faces are parallel to the yz-plane and given by the planes x = d and x = -d. The y- and z-dimensions of the slab are very lar...