Calculate the equivalent capacitance between the points `A` and `B` in the combination shown in Fig.

Answer

`15 mu F`

Explanation

In Fig. , `C_(1) = 5 mu F, C_(2) = 10 mu F`,
and `C_(3) = 15 mu F` are in parallel.
`:. C_(p) = C_(1) + C_(2) + C_(3) = 5 + 10 + 15 = 30 mu F`
Again `C_(p)` & `C_(4)` are in series. Therefore,
`(1)/(C_(s)) = (1)/(C_(p)) + (1)/(C_(4)) = (1)/(30) + (1)/(30) = (1)/(15)`
`C_(s) = 15 mu F`