• # question_answer The potential difference between A and B in the following situation is A)  12 V               B)  7 V                 C)    20 V   D)    14 V

The current distribution after application of Kirchhoff?s junction rule is shown in the figure. Along the path AFB, we have ${{V}_{A}}-{{V}_{B}}=5\times 2-10+7\times 1+5=12\,V$ Hence, the correction option is (b).