EngiRef / Electrical Engineering Formula

RL Time Constant

RL Time Constant: Time constant of RL circuit. A DC Circuits formula in electrical engineering. Variables τ, L and R, each with SI and imperial units.

DC Circuits

Specification

Name
RL Time Constant
Discipline
electrical
Category
DC Circuits
LaTeX
\tau = \frac{L}{R}
Description
Time constant of RL circuit
Can solve for
τ, L, R
Tags
rl, time, constant, transient, inductor

Variables

Variables for RL Time Constant
SymbolNameUnitSi Unit
τTime Constantss
LInductanceHH
RResistanceΩΩ

Common questions

What is the RL Time Constant formula?
Time constant of RL circuit. It sits under DC Circuits, Electrical engineering in the EngiRef reference.
What do the symbols in the RL Time Constant formula mean?
In RL Time Constant, τ is time constant in s; L is inductance in H; R is resistance in Ω.