iran-konkur 2022 Q184

iran-konkur · Other · konkur-riazi_1401_specialized Not Maths
184. In the figure below, all three resistors are identical. If we connect a switch and close it, the power consumed by the circuit changes to 9 watts. Each resistor is how many ohms?
[Figure: Circuit with three identical resistors (two in parallel, one in series) connected to a battery $\varepsilon = 18\,\text{V}$, with a switch]
  • [(1)] $18$
  • [(2)] $12$
  • [(3)] $9$
  • [(4)] $6$

%% Page 18 Physics $\leftarrow$ 122-A $\rightarrow$ Page 9
\textbf{184.} In the figure below, all three resistors are identical. If we connect a switch and close it, the power consumed by the circuit changes to 9 watts. Each resistor is how many ohms?

\textit{[Figure: Circuit with three identical resistors (two in parallel, one in series) connected to a battery $\varepsilon = 18\,\text{V}$, with a switch]}

\begin{itemize}
    \item[(1)] $18$
    \item[(2)] $12$
    \item[(3)] $9$
    \item[(4)] $6$
\end{itemize}



%% Page 18
\textbf{Physics} \hfill $\leftarrow$ \textbf{122-A} $\rightarrow$ \hfill \textbf{Page 9}