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PhysicsJEE Main 6 Apr 2026, Shift 1·Q20·MCQ·Easy–moderate

Alternating Current · LCR and power

A LCR series circuit driven with Erms=90E_{\mathrm{rms}} = 90 V at frequency fd=30f_d = 30 Hz has resistance R=80 ΩR = 80\ \Omega, an inductance with inductive reactance XL=20.0 ΩX_L = 20.0\ \Omega and capacitance with capacitive reactance XC=80.0 ΩX_C = 80.0\ \Omega. The power factor of the circuit is .
  1. (1)0.8
  2. (2)0.64
  3. (3)0.9
  4. (4)0.5

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