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Two long straight wires with equal cross...

Two long straight wires with equal cross-sectional radii a are located parallel to each other in air. The distance between their axes equal b. Find the mutual capacitance of the wires per unit length under the condition `b gt gt a` .

A

`C~~piepsilon_(0)//ln(b//a)`

B

`C~~(piepsilon_0)/(ln(a//b))`

C

`C~~pi//epsilon_(0)ln(b//a)`

D

`C~~piepsilon_(0)ln(ba)`

Text Solution

Verified by Experts

The correct Answer is:
A
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