AP EAMCET · PHYSICS · Current Electricity
The resultant resistance between \(\mathrm{A}\) and \(\mathrm{B}\) in the given figure is
- A \(1 \Omega\)
- B \(2 \Omega\)
- C \(3 \Omega\)
- D \(6 \Omega\)
Answer & Solution
Correct Answer
(C) \(3 \Omega\)
Step-by-step Solution
Detailed explanation
Apply the Wheatstone bridge \[ \begin{aligned} & \frac{\mathrm{R}_{\mathrm{AB}}}{\mathrm{R}_{\mathrm{BC}}}=\frac{\mathrm{R}_{\mathrm{AD}}}{\mathrm{R}_{\mathrm{DC}}}=\frac{3}{3}=\frac{3}{3} \\ & \mathrm{R}_{\mathrm{AB}}=\frac{6 \times 6}{6+6}=3 \Omega \end{aligned} \]
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