Physics · Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current
The inductive reactance of a choke coil of in an circuit of will be
The inductive reactance of a choke coil of \( 1 / 4 \pi m H \) in an \( A C \) circuit of \( 50 H z \) will be
- A. 25 ohm
- B. 0.25 ohm
- C. 0.025 ohm
- D. 2.5 ohm
Step-by-step solution
Inductive reactance XL = 2πfL. Given L = 1/(4π) mH = 1/(4π) × 10⁻³ H and f = 50 Hz. Then XL = 2π × 50 × (1/(4π) × 10⁻³) = (100π)/(4π) × 10⁻³ = 25 × 10⁻³ = 0.025 ohm.
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