Q7 - A long, straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the wire. The wire has a charge per unit length of λ, and the cylinder has a net charge per unit length of 2. From this information, use Gauss's law to find a) the charge per unit length on the inner surface of the cylinder, b) the charge per unit length on the outer surface of the cylinder, and c) the electric field outside the cylinder a distance r from the axis.
Q7 - A long, straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the wire. The wire has a charge per unit length of λ, and the cylinder has a net charge per unit length of 2. From this information, use Gauss's law to find a) the charge per unit length on the inner surface of the cylinder, b) the charge per unit length on the outer surface of the cylinder, and c) the electric field outside the cylinder a distance r from the axis.
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Transcribed Image Text:Q7 - A long, straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the wire. The wire
has a charge per unit length of λ, and the cylinder has a net charge per unit length of 2. From this information, use
Gauss's law to find
a) the charge per unit length on the inner surface of the cylinder,
b) the charge per unit length on the outer surface of the cylinder, and
c) the electric field outside the cylinder a distance r from the axis.
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