Geiger counter

1. Sep 21, 2005

choole

A particular Gieger counter has a metal cylinder with an inner diameter of 2 cm along whose axis is stretched a wire with 44 N of tension. The potential difference between the wire and the cylinder is 890 volts. The wire has a length of 6 cm and an outer diameter of 1.5 X 10-4 cm.
A. To find the electric field at the surface of wire?
B To find the electric field at the inner surface of the cylinder

Vf - Vi = int(E dot ds) from radius of wire to cylinder.
and E = lemda/2piE0r

i tried solving like this but i didn't get the answer. Please help

Last edited: Sep 21, 2005
2. Sep 21, 2005

Integral

Staff Emeritus
It is not clear to me what your goal is? What are you looking for?

3. Sep 21, 2005

choole

To find the electric field at the surface of the wire?

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