RLC Circuit Simulator Online – Virtual Lab & Calculator

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RLC Circuit Simulator – AC Waveform & Power Calculator

By Sanket Barde • Basic Electrical Engineering • GATE • JEE

Calculate impedance, current, phase angle, power factor and real, reactive and apparent power for R, L, C, RL, RC and series RLC circuits — and watch voltage, current and power waveforms animate live.

How to use this simulator:

1. Select the circuit type (R, L, C, RL, RC or RLC).
2. Enter the supply voltage (RMS), frequency and component values.
3. Click Calculate & Simulate to see all results with formulas and live waveforms.

1Select Circuit Type

2Enter Values & Calculate

Circuit Parameters

Calculated Values

Enter the parameters and click Calculate & Simulate.

3Waveform Visualization

v(t), i(t) and p(t)

Show only Voltage & Current (hide power waveforms)

Voltage v(t) Current i(t) Power p(t) Average Power

Click Calculate to start the simulation.

4Circuit Diagram

5Key Formulas for AC Series Circuits

Quantity	Formula	Unit
Inductive reactance	XL = 2πfL	Ω
Capacitive reactance	XC = 1 / (2πfC)	Ω
Impedance (series RLC)	Z = √(R² + (XL − XC)²)	Ω
Phase angle	φ = tan⁻¹((XL − XC) / R)	degree
Power factor	cos φ = R / Z	—
Real power	P = V I cos φ = I²R	W
Reactive power	Q = V I sin φ	VAR
Apparent power	S = V I	VA
Resonant frequency	fr = 1 / (2π√(LC))	Hz

Remember: In an inductive circuit (X_L > X_C) the current lags the voltage; in a capacitive circuit (X_C > X_L) it leads. At resonance X_L = X_C, so Z = R, the power factor is unity and the current is maximum.

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Further Reading & Related Tutorials

• Kirchhoff's Laws: Theory
  Understand KCL and KVL before solving numerical problems.
• Superposition Theorem: Solved Examples
  Another important method of circuit analysis.

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