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JEE Main202120 Jul 2021Evening ShiftPhysicsAlternating CurrentActual

For a series LCR circuit with R = 100 Ω , L = 0 . 5 mH and C = 0 . 1 pF connected across 220 V - 50 Hz AC supply, the phase angle between current and supplied voltage and the nature of the circuit is:

Options

  1. A0 ° , resistive circuit
  2. B≈ 90 ° , predominantly inductive circuit
  3. C0 ° , resonance circuit
  4. D≈ 90 ° , predominantly capacitive circuit

Correct answer

D. ≈ 90 ° , predominantly capacitive circuit

Step-by-step solution

R = 100   Ω X L = ω L = 50 π × 10 - 3 X C = 1 ω C = 10 11 100 π X C ≫ X L and X C - X L ≫ R

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