Question

Find the potential difference across the capacitor in volts.

• A. 7
• B. 8
• C. 9
• D. 10

Answer 1

The correct option is B 8

In steady state, capacitor behaves open circuit.

Calculated i;

$i=\frac{6}{R}A$

Now, calculated $i_1,i_2$ by current division rule or KLV;

$i_1=\frac{2}{R},i_2=\frac{4}{R}$

Now, apply KVL as per the red line loop;

$V_A=i_{1}R+iR+V_B$

$V_A-V_B=R(i_1+i)$

$V_A-V_B=8V$