Basic Maths and Units and DimensionsHard

Question

In the circuit shown in figure E1 = E2 = 4V and E3 = 2V and R = r1 = r2 = r3 = 1Ω then potential difference between A and B will be :-
       

Options

A.3V
B.1V
C.-3V
D.-1V

Solution

VCB = = 2
So VA - 1 - 2 = VB
     VA - VB = 3V

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