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Question:

The potential difference (VA−VB) between the points A and B in the given figure is.

+3 V

-3 V

  • 9 V

+6 V

Solution:

Given :I=2A
Using Kirchhoff's law
VA−I(2)−I(1)−VB=0
∴VA−2I−I−VB=0
OR VA−3I−VB=0
Substituting I=2A
VA−3(2)−VB=0
VA−6−VB=0
VA−VB=+6V