RL Time Constant RechnerFormel

## RL Time Constant

The RL time constant governs how quickly current builds up or decays in an inductor-resistor circuit.

### Formula

**τ = L / R**

After one time constant, the current reaches 63.2% of its final steady-state value.

Lösungsbeispiel

A 50 mH inductor with a 10 Ω resistor.

  1. τ = L / R
  2. τ = 50e-3 / 10
  3. τ = 0.005 s = 5 ms