Question

The potential difference between points A and C is
a) 2/3 V
b) 4/3 V
c) 8/9 V
d) 2 V

The diagram is attached ..

Answer 1

Consider the branch A-C which has the battery.
Now, potential difference across the battery (assuming it is ideal and has no internal resistance) = 2V
This is also equal to Va - Vc. (which are the two terminals across which the battery is connected)
Thus Va - Vc = 2V

Answer 2

@FoolAroundMath : Exactly that's the thing that i did! .. So, you mean the ans is 2V itself.. no ?.. Thanx! :)

Answer 3

As simple as that.