The capacitance of two parallel conductors of length L and radius r, separated by a distan...

The capacitance of two parallel conductors of length L and radius r, separated by a distance d in air, is given by

where ∊ is the permittivity of air (∊ = 8.854 × 10−12 F/m).

Write a script file that accepts user input for d, L, and r, and computes and displays C. Test the file with the values: L = 1 m, r = 0.001 m, and d = 0.004 m.