Problem 2 6= An n-type Si sample (n = 100 cm³, 11.7) with Na = 100 cm³ has trapped positive = 10° cm 2. Find the value of the surface surface charges at the surface density N's potential os assuming that os

A 10cm10cm piece of aluminum foil of 0.1 mm thickness has a charge of that spreads on both wide side surfaces evenly. You may ignore the charges on the thin sides of the edges. (a) Find the charge density. (b) Find the electric field 1 cm from the center, assuring approximate planar symmetry.

The conductor in the preceding figure has an excess charge of 5.0C . If a 2.0C point charge is placed in the cavity, what is the net charge on the surface of the cavity and on the outer surface of the conductor?

A very long, thin wile has a uniform linear charge density of 50C/m . What is the electric field at a distance 2.0 cm from the wire?

An uncharged conductor with an internal cavity is shown in the following figure. Use the closed surface S along with Gauss' law to show that when a charge q is placed in the cavity a total charge q is induced on the inner surface of the conductor. What is the charge on the outer surface of the conductor? Figure 6.46 A charge inside a cavity of a metal. Charges at the outer surface do not depend on how the charges are distributed at the inner surface since E field inside the body of the metal is zero.

Two 10cm10cm pieces of aluminum foil of thickness 0.1 mm face each other with a separation of 5 mm. One of the foils has a of +30C and the has 30C . (a) Find the charge density at all surfaces, i.e., on those facing each other and those facing away. (b) Find the electric field between the plates near the center assuming planar symmetry.

Two thin parallel conducting plates are placed 2.0 cm apart. Each plate is 2.0 cm on a side; one plate carries a net charge of 8.0 C , and the other plate carries a net charge of 8.0C . What is the charge density on the inside surface of each plate? What is the electric field between the plates?

Suppose that the charge density of the spherical chargedistribution shown in Figure 6.23 is p(r)=p0r/R for rR and zero for rR . Obtain expressions for theelectric field both inside and outside the distribution.

Consider a uranium nucleus to be sphere of radius R=7.41015 m with a charge of 92e distributed uniformly throughout its volume. (a) is the electric force exerted on an electron when it is 3.01015 m from the center of the nucleus? (b) What is the acceleration of the electron at this point?

Charge is distributed uniformly along the entire y-axis with a density y and along the positive x-axis from x=a to x=b with a density x. What is force between the two distributions?