A cylindrical rubber insulated cable has a diameter of 0.18 inch and an insulation thickness of 0.25 inch. If the specific resistance 0f rubber is 1014 ohm-cm, determine the insulation resistance per 1000 ft length of the cable.
Solution;
Given;
d=0.18in
The outer radius is;
Specific resistance of rubber;
Length
Insulation resistance;
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