AP EAMCET · PHYSICS · Current Electricity
If each resistance in the figure is \(9 \Omega\), then the reading of the ammeter (A) is
- A 8 A
- B 5 A
- C 2 A
- D 9 A
Answer & Solution
Correct Answer
(B) 5 A
Step-by-step Solution
Detailed explanation
\(R_{series} = 9 \, \Omega + 9 \, \Omega = 18 \, \Omega\) \(\frac{1}{R_{eq}} = \frac{1}{9 \, \Omega} + \frac{1}{9 \, \Omega} + \frac{1}{18 \, \Omega} = \frac{2+2+1}{18 \, \Omega} = \frac{5}{18 \, \Omega}\) \(R_{eq} = \frac{18}{5} \, \Omega = 3.6 \, \Omega\)…
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