The combined capacity of the parallel combination of two capacitors is four times their combined capacity when connected in series. This means that

Options

A. `2muF and 4muF`
B. equal
C. `1muF and 2muF`
D. `5muF and 10 muF`

Answer

B

Explanation

If they are equal, then `C_(p)=C+C=2C`
and `(1)/(C_(S))=(1)/(C)+(1)/(C)=(2)/(C)`
`therefore C_(S)=(C)/(2) and (C_(p))/(C_(S))=4`