COMEDK · Physics · 19. Current Electricity
The potential difference between \(A\) and \(B\) in the following figure is
- A \(32 \mathrm{~V}\)
- B \(48 \mathrm{~V}\)
- C \(24 \mathrm{~V}\)
- D \(14 \mathrm{~V}\)
Answer & Solution
Correct Answer
(B) \(48 \mathrm{~V}\)
Step-by-step Solution
Detailed explanation
Applying Kirchhoff's voltage law, we get \[ \begin{array}{ll} -V_{A B}+6 \times 2+12+9 \times 2-4+5 \times 2=0 \\ \Rightarrow & -V_{A B}+48=0 \\ \Rightarrow & V_{A B}=48 \mathrm{~V} \end{array} \]
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