The ɛr is the relative permittivity of insulation of a cable and C is the capacitance of cable, which of the following is correct relation?

Q. The ɛr is the relative permittivity of insulation of a cable and C is the capacitance of cable, which of the following is correct relation?

A. C α ɛr

B. C α 1 / ɛr

C. C α ɛr^2

D. none of the above

Answer: C α ɛr