Question

In the given circuit, find the potential difference $V_P-V_Q$

• A. 5V
• B. 10V
• C. 15V
• D. 20V

Answer 1

The correct option is D 20V


$i=\frac{\Delta V}{R}=\frac{30}{15}=2A$
As we move from P to Q
$V_P-i\left(8\right)-i\left(2\right)=V_Q$
$V_P-V_Q=i(8+2)=i\left(10\right)=2\left(10\right)$
$=20$ Volt