COMEDK · Physics · 23. Alternating Current
In the circuit shown, the internal resistance of the cell is negligible. The steady state current in the \(2 ~\Omega\) resistor is
- A \(0.6 \mathrm{~A}\)
- B \(1.2 \mathrm{~A}\)
- C \(0.9 \mathrm{~A}\)
- D \(1.5 \mathrm{~A}\)
Answer & Solution
Correct Answer
(C) \(0.9 \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
\(2 \Omega\) and \(3 \Omega\) resistors are in parallel, so their equivalent resistance, \[ R_{\text {eq }}=\frac{2 \times 3}{2+3}=\frac{6}{5}=1.2 \Omega \] As capacitor blocks DC at steady state, so the resistor \(4 \Omega\) is ineffective. The \(R_{\text {eq }}\) and…
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