In steady state- charge of 3- F capacitor is-

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Standard XII

Physics

Conductivity and Resistivity

In steady sta...

Question

In steady state, charge of $3 μ F$ capacitor is:

36 μ C

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27 μ C

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18 μ C

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54 μ C

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Solution

The correct option is B $27 μ C$
We can redraw the above circuit diagram as following
Value of current in the circuit, $i = \frac{V}{R_{e q}}$
$i = \frac{18}{6 + 6} = 1.5 A$
Voltage drop across $R_{2}, V_{2} = R_{2} i = 6 \times 1.5 = 9 V$
Charge on capacitor $(C_{2} = 3 μ F)$ is
$a_{2} = C_{2} V_{2} = 3 \times 9 = 27 μ C$ .

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In steady state, charge of 3μF capacitor is:

The correct option is B 27μCWe can redraw the above circuit diagram as followingValue of current in the circuit, i=VReqi=186+6=1.5 AVoltage drop across R2,V2=R2i=6×1.5=9VCharge on capacitor (C2=3μF) isa2=C2V2=3×9=27μC.

In steady state, charge of $3 μ F$ capacitor is: