Question

A certain cable has an insulation of
relative permittivity 4. If the insulation
is replaced by one of relative permit-
tivity 2, the capacitance of the cable will
become
(a) one half (6) double
(c) four times (d) none of the above
If noble of home​

Answer 1

Answer:

(a) option is correct.

Explanation:

relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has vacuum as its dielectric....