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Answer: 4. 2.2 A

Displacement current in the capacitor gap equals the conduction current in the circuit at every instant, so its peak is the peak circuit current.

  • \(Z=\sqrt{R^2+X_C^2}=\sqrt{100^2+100^2}=100\sqrt2\ \Omega\).
  • \(I_{rms}=\dfrac{220}{100\sqrt2}=\dfrac{11}{5\sqrt2}\) A.
$$I_0=\sqrt2\,I_{rms}=\frac{11}{5}=2.2\ \text{A}$$

Option (4). The condition 'capacitor 50% charged' does not change the peak value.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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