A) \[-2V\]
B) \[2V\]
C) \[5V\]
D) \[\frac{20}{11}V\]
Correct Answer: B
Solution :
\[{{R}_{eq}}=5\Omega \], Current \[i=\frac{10}{5}=2A\] and current in each branch = 1A Potential difference between C and A, \[{{V}_{C}}-{{V}_{A}}=1\times 1=1V\] .......(i) Potential difference between C and B, \[{{V}_{C}}-{{V}_{B}}=1\times 3=3V\] ......(ii) On solving (i) and (ii) \[{{V}_{A}}-{{V}_{B}}=2\,volt\] Shot Trick : \[({{V}_{A}}-{{V}_{B}})=\frac{i}{2}({{R}_{2}}-{{R}_{1}})=\frac{2}{2}(3-1)=2V\]You need to login to perform this action.
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