1. What is Current Through Inductor?

The current through an inductor in an AC circuit is calculated using the formula I = V/(2πfL), where V is the voltage, f is the frequency, and L is the inductance. This formula helps determine the current flowing through an inductor when subjected to an alternating voltage.

2. How Does the Calculator Work?

The calculator uses the inductor current formula:

Where:

• \( I \) — Current through inductor (Amperes)
• \( V \) — Voltage applied (Volts)
• \( f \) — Frequency (Hertz)
• \( L \) — Inductance (Henries)

Explanation: The formula calculates the RMS current through an ideal inductor in an AC circuit, assuming sinusoidal waveform and negligible resistance.

3. Importance of Current Calculation

Details: Accurate current calculation is crucial for circuit design, component selection, and ensuring proper operation of inductive components in AC circuits.

4. Using the Calculator

Tips: Enter voltage in volts, frequency in hertz, and inductance in henries. All values must be positive and non-zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why does frequency affect inductor current?
A: Higher frequencies create greater inductive reactance (XL = 2πfL), which limits current flow through the inductor.

Q2: What is the phase relationship in an ideal inductor?
A: In an ideal inductor, current lags behind voltage by 90 degrees in an AC circuit.

Q3: Does this formula work for DC circuits?
A: No, for DC circuits (f=0), the formula would give infinite current. In reality, DC current through an inductor is limited by its resistance.

Q4: What are typical inductance values?
A: Inductance values range from microhenries (μH) for small inductors to henries (H) for large power inductors.

Q5: How does core material affect inductance?
A: Ferromagnetic cores increase inductance significantly compared to air cores due to higher permeability.