question_answer

The potential difference \[({{V}_{A}}-{{V}_{B}})\] between the points A and B in the given figure is

A)  -3V                             

B)  +3V

C)  +6V                           

D)  +9V

Correct Answer: D

Solution :

                        \[{{V}_{A}}-{{V}_{B}}=(2\times 2)+3+(2\times 1)\]             =4+3+2             =9 V