The charge stored by the capacitor $C$ in the given circuit in the steady state is $\_\_\_\_$ $\mu \mathrm{C}$.

• A

  5
• B

  12.5
• Correct answer
  C

  10
• D

  7.5

Solution

In steady state:

$i = 2.5/5 = 0.5$ A
$V_c = 4 \times 0.5$
$V_c = 2V$
charge
$Q = CV_c$
$= 5 \times 2$
$= 10 \, \mu C$

Hence, the correct answer is option: 'C'.