1. What is Inductive Reactance?

Inductive reactance (X_L) is the opposition that an inductor presents to alternating current due to its inductance. It increases with both frequency and inductance, measured in ohms (Ω).

2. How Does the Calculator Work?

The calculator uses the inductive reactance formula:

Where:

• \( X_L \) — Inductive reactance (Ω)
• \( f \) — Frequency of the AC signal (Hz)
• \( L \) — Inductance (H)
• \( \pi \) — Mathematical constant (~3.14159)

Explanation: The reactance increases linearly with frequency and inductance. At DC (0 Hz), the reactance is zero.

3. Importance of Inductive Reactance

Details: Understanding inductive reactance is crucial for designing AC circuits, filters, and inductive components. It determines how inductors behave in AC circuits and affects impedance calculations.

4. Using the Calculator

Tips: Enter frequency in Hertz (Hz) and inductance in Henrys (H). Both values must be positive numbers. The calculator will compute the inductive reactance in ohms (Ω).

5. Frequently Asked Questions (FAQ)

Q1: How does inductive reactance differ from resistance?
A: Unlike resistance which opposes both AC and DC, inductive reactance only opposes AC and depends on frequency.

Q2: What happens to reactance at higher frequencies?
A: Inductive reactance increases linearly with frequency (X_L ∝ f).

Q3: What's the reactance at DC (0 Hz)?
A: At DC, inductive reactance is zero - an ideal inductor acts as a short circuit to DC.

Q4: How does core material affect inductance?
A: Core material affects inductance but not the fundamental relationship expressed in this formula.

Q5: Can this formula be used for any inductor?
A: Yes, for ideal inductors. Real inductors also have some resistance and parasitic capacitance.