Inductive time constant calculator

Calculate the inductive time constant (τ) of an RL circuit, which determines how quickly the current reaches its steady-state value after a change in voltage.

Input Parameters

Calculation Results

Calculation Formula

τ = L / R

Where:
τ = Time constant (seconds)
L = Inductance (Henry, H)
R = Resistance (Ohm, Ω)

Result

Time Constant (τ): -- seconds --

Inductive time constant calculator Calculator Usage Guide

Learn how to use the Inductive time constant calculator and its working principles

How to use the calculator

  1. Enter the inductance (L) value in Henry (H).
  2. Enter the resistance (R) value in Ohms (Ω).
  3. Click the "Calculate" button to compute the time constant.
  4. The result will be displayed in seconds.

Working Principle

The inductive time constant (τ) is a characteristic of an RL circuit. It represents the time required for the current to reach approximately 63.2% of its final value after a sudden change in voltage. The formula used is τ = L/R, where L is the inductance and R is the resistance.

Practical Applications

This calculator is useful for engineers and technicians working with RL circuits in applications such as motor control, filters, and energy storage systems. Understanding the time constant helps in designing circuits that respond appropriately to changes in voltage or current.