Question

The potential difference between the points A and B is:

Answer 1

Applying KVL law :-

$V_A-3-2\times I-V_B-2\times I-2=0$

or, $V_A-V_B=3+2I+2I+2$

or, $V_A-V_B=5+4I$

$=5+4I$

no other formula to determine the value of $I$ passing through the loop.