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September 20, 2014

Homework Help: Physics

Posted by Physics on Thursday, May 13, 2010 at 1:22am.

The inner conductor of a coaxial cable has a radius of 0.900 mm, and the outer conductor's inside radius is 5.00 mm. The space between the conductors is filled with polyethylene, which has a dielectric constant of 2.30 and a dielectric strength of 18E6 V/m. What is the maximum potential difference that this cable can withstand?

no idea what to do...
thought it was
V= 18E6*d/k
but it was wrong...

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