iran-konkur 2017 Q180

iran-konkur · Other · konkur-riazi_1396_specialized Not Maths
180. In the circuits below, the capacitors are given measured values and have electrical charge. If the plates of all capacitors in each circuit are connected together, which capacitor's charge decreases?
[Figure: Two circuits shown. Circuit (1): $C_1 = 2C$ with charge $2q$ in parallel with $C_2 = C$ with charge $q$. Circuit (2): $C_3 = 2C$ with charge $q$ in parallel with $C_4 = C$ with charge $q$.]
  • [(1)] $C_1$ and $C_2$
  • [(2)] $C_4$ and $C_3$
  • [(3)] $C_3$
  • [(4)] $C_4$
\textbf{180.} In the circuits below, the capacitors are given measured values and have electrical charge. If the plates of all capacitors in each circuit are connected together, which capacitor's charge decreases?

\begin{center}
\textit{[Figure: Two circuits shown. Circuit (1): $C_1 = 2C$ with charge $2q$ in parallel with $C_2 = C$ with charge $q$. Circuit (2): $C_3 = 2C$ with charge $q$ in parallel with $C_4 = C$ with charge $q$.]}
\end{center}

\begin{itemize}
    \item[(1)] $C_1$ and $C_2$
    \item[(2)] $C_4$ and $C_3$
    \item[(3)] $C_3$
    \item[(4)] $C_4$
\end{itemize}