3. The capacitance of two parallel conductors of length $L$ and radius $r$, separated
by a distance $d$ in air, is given by
$C = \frac{\pi \epsilon L}{ln[(d - r)/r]}$
, where $\epsilon$ is the permittivity of air ($\epsilon = 8.854 \times 10^{-12}$ F/m)
Write a script file that accepts user input for $d$, $L$, and $r$ and create a table that
computes and displays $C$. Test the file with the values $L = 1$ m, $r = 0.001$ m, and $d =$
0.003 to 0.01 m (use linspace to create 6 values).
d (m) C(F) X 10^11
0.0030 4.0130
0.0044 2.2729
0.0058 1.7733
0.0072 1.5245
0.0086 1.3715
0.0100 1.2659