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NEET · Physics · STD 12 - 3. current electricity
Six similar bulbs are connected as shown in the figure with a \(DC\) source of \(emf\; E\), and zero internal resistance. The ratio of power consumption by the bulbs when \((i)\) all are glowing and \((ii)\) in the situation when two from section \(A\) and one from section \(B\) are glowing, will be
- A \(4:9\)
- B \(9:4\)
- C \(1:2\)
- D \(2: 1\)
Answer & Solution
Correct Answer
(B) \(9:4\)
Step-by-step Solution
Detailed explanation
\(\mathrm{R}_{\mathrm{eq}_{1}}=2 \mathrm{R} / 3\) \(\mathrm{R}_{\mathrm{eq}_{2}}=\mathrm{R} / 2+\mathrm{R}=\frac{3 \mathrm{R}}{2}\)
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