Question

Three capacitors each of capacity $4\mu F$ are to be connected in such a way that we get the effective capacitance of $6\mu F$. This can be done by:

• A. connecting all of them in series
• B. connecting them in parallel
• C. connecting two in series and one in parallel
• D. connecting two in parallel and one in series

Answer 1

The correct option is C connecting two in series and one in parallel

To get equivalent capacitance $6\mu F$ two $4\mu F$ capacitors are to be connected in series and third one is connected in parallel.
From figure equivalent capacitance
$C_{eq}=\frac{4\times 4}{4+4}+4=2+4=6\mu F$