# How to calculate Potential Difference between 2 random points in a circuit? [closed]

This might be a very easy question to solve for a lot of you but I was having an extremely hard time evaluating the potential difference between points A and B. Thats why I decided to just post this question.

Consider the circuit shown in the figure -

(A) The current in the $$5 \Omega$$ resistor is $$2A$$

(B) The current in the $$5 \Omega$$ resistor is $$1A$$

(C) The potential difference $$V_A - V_B$$ is $$7V$$

(D) The potential difference $$V_A - V_B$$ is $$5V$$

For finding the current through the $$5 \Omega$$ resistor I just found the net resistance and then used $$I = {V \over R}$$ (Ohm's Law). For PD I tried using the Voltage division rule on both points A and B. However, that technique didn't work. I saw the solution of this question and my book used KVL to solve it. I don't want to use that method to solve the question unless I HAVE to. So, can anybody show how to solve this; preferably using Voltage Division Rule? (I'm open to other ways too)