Inductor Calculator
Online calculators for inductors and RL circuits
Inductor Fundamentals
Inductance
Calculation of inductance and properties
Inductive Reactance
Reactance XL at given frequency
RL Circuit Analysis
RL Series Circuit
Voltage, current and power in RL series circuits
RL Parallel Circuit
Voltage, current and power in RL parallel circuits
RL Cutoff Frequency
Calculate cutoff frequency of RL circuits
Filter Design
RL High-pass Filter
Design and analysis of RL high-pass filters
RL Low-pass Filter
Design and analysis of RL low-pass filters
RL Differentiator
RL differentiator circuit analysis and design
Special Circuits
Transformer
Turns ratio, voltages and currents
About Inductor Calculators
Inductors are passive electrical components that store energy in a magnetic field when electric current flows through them. They oppose changes in current and are fundamental components in AC circuits, filters, and energy storage systems.
- Inductance - Measured in Henries (H)
- Reactance - XL = 2πfL
- Time Constant - τ = L/R
- Filters - High-pass, low-pass
- Transformers - Voltage conversion
- Energy - E = ½LI²
Note: Inductors are used in power supplies, filters, oscillators and
transformers. Understanding their behavior in AC circuits is essential for
electrical engineering applications.
Important Formulas
Fundamentals
XL = 2πfL
E = ½LI²
τ = L/R
RL Circuit
Z = √(R² + XL²)
fc = R/(2πL)
Inductor Types
Air Core: Without core
Iron Core: High inductance
Ferrite Core: RF applications
Iron Core: High inductance
Ferrite Core: RF applications
Toroidal: Closed magnetic circuit
Quality Factor Q: XL/R
Self-Resonance: With parasitic capacitance
Quality Factor Q: XL/R
Self-Resonance: With parasitic capacitance