CapacitanceMedium
Question
The charge stored by the capacitor C in the given circuit in the steady state is $\_\_\_\_$ $\mu C$.
Options
A.12.5
B.10
C.7.5
D.5
Solution
in steady state
$$\begin{matrix} & i = 2.5/5 = 0.5\text{ }A \\ & {\text{ }V}_{C} = 4 \times 0.5 \\ & {\text{ }V}_{C} = 2\text{ }V \end{matrix}$$
$$\begin{matrix} Q & \ = {CV}_{C} \\ & \ = 5 \times 2 \\ & \ = 10\mu C \end{matrix}$$
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