25.22. A hollow aluminum cylinder is 2.50 m long and has an inner radius of 2.75 cm and an outer radius of 4.60 cm. Treat each surface (inner, outer, and the two end faces) as an equipotential surface. At room temperature, what will an ohmmeter read if it is connected between (a) the opposite faces and (b) the inner and outer surfaces?

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Adapted from 22.37 in your book: A long coaxial cable consists of an inner cylindrical conductor with radius 1.00 mm and an outer coaxial conducting cylinder with inner radius 4.0 mm and outer radius 5.0 mm. The outer cylinder is mounted on insulating supports and has no net charge. The inner cylinder has a uniform charge per unit length of 1.0 C/m. a) Calculate the electric field in the space between the cylinders. b) Calculate the electric field outside the outer cylinder. c) What is the electric field in the interior of the outer cylinder? d) Find the charge per unit length on the inner surface and the outer surface of the cylinder.

Hello! I have been falling behind in physics class and I have noclue how to answer these types of questions. Please help!

An insulating spherical shell with inner radius 25.0 \rm cm andouter radius 60.0 \rm cm carries a charge of + 150.0 \mu {\rm C}uniformly distributed over its outer surface. Point a is at thecenter of the shell, point b is on the inner surface and point c ison the outer surface.

a)What will a voltmeter read if it is connected between a andb?
b)What will a voltmeter read if it is connected between b andc?
c)What will a voltmeter read if it is connected between c andinfinity?
d)What will a voltmeter read if it is connected between a andc?
e)Which point is at higher potential, a or b?

A long cylindrical conducting shell has inner radius R1=10 cmand an outer radius R2=12 cm. the conductor has no net charge. Atthe center of the cylinder, there is a negative line of charge withlinear charge density Î»=5Î¼c/m.

A) Find the magnitude and direction ofthe electric field outside the shell at a distance r from thecenter, (r>R2)

B) Find the magnitude anddirection electric field in the region between the inner and theouter radius of the conductor at distance r from the center (R2>r >R1)

C) Find the surface charge densityon the outer surface of the conductor.

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