In the given figure, the charge stored in $6 μ F$ capacitor, when points $A$ and $B$ are joined by a connecting wire is _______ $μ C$ .

Question

In the given figure, the charge stored in 6 μ F capacitor, when points A and B are joined by a connecting wire is _______ μ C .

TestHub · Accepted Answer

At steady state, capacitor behaves as an open circuit and current flows in circuit as shown in the diagram.

$R_{eq} = 9 Ω$

$i = \frac{9 V}{9 Ω} = 1 A$

$Δ V_{6 Ω} = 1 \times 6 = 6 V$

$V_{A} = 3 V$

So, potential difference across $6 μ F$ is $6 V .$

Hence, $Q = C Δ V$

$= 6 \times 6 \times 10^{- 6} C$

$= 36 μ C$

Physics - Capacitor Question with Solution | TestHub