61-65. Charged Conductor Problem

# 61-65. Charged Conductor Problem - q s = +4 μ C on it. •...

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Charged Conductor Problem (1) Consider a metal cube with a charge 2C on it positioned inside a cubic metal shell with a charge - 1C on it. Find the charge Q int on the interior surface and the charge Q ext on the exterior surface of the shell. 2C -1C Q int Q ext tsl61 – p.1/5

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Charged Conductor Problem (2) A conducting spherical shell of inner radius r 1 = 4 cm and outer radius r 2 = 6 cm carries no net charge. Now we place a point charge q = - 1 μ C at its center. (a) Find the surface charge densities σ 1 and σ 2 . (b) Find the electric fields E 1 and E 2 in the immediate vicinity of the shell. (c) What happens to the electric fields inside and outside the shell when a second point charge Q = +1 μ C is placed a distance d = 20 cm from the center of the shell? (d) Which objects exert a force on the second point charge? q r 1 r 2 q 1 q + 2 Q tsl62 – p.2/5
Charged Conductor Problem (3) A point charge q p = - 7 μ C is positioned at the center of a conducting spherical shell with a charge

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Unformatted text preview: q s = +4 μ C on it. • Find the direction (inward/outward) of the electric field at the points A and B . q s q p A B tsl63 – p.3/5 Charged Conductor Problem (4) A long conducting cylinder of radius R = 3 cm carries a charge per unit length λ c = 5 . μ C/m. It is surrounded by a conducting cylindrical shell of radii R 1 = 7 cm and R 2 = 11 cm. The shell carries a charge per unit length λ s =-8 . μ C/m. (a) Find the linear charge densities λ 1 , λ 2 on the inner and outer surfaces of the shell. (b) Find the electric fields E , E 1 , E 3 in the vicinity of the three conducting surfaces. R R 1 2 R tsl64 – p.4/5 Charged Conductor Problem (5) Consider two concentric shells with charges on them as indicated. • Find the charges q A , q B , q C , q D on each of the four surfaces. 5C-3C D C B A tsl65 – p.5/5...
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## This note was uploaded on 04/30/2008 for the course PHYS 204 taught by Professor Andrevantonder during the Spring '07 term at Rhode Island.

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61-65. Charged Conductor Problem - q s = +4 μ C on it. •...

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