Rise of Current in Series LR Circuit (i = (E/R)(1 - e^{-Rt/L}))
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i = (E/R)(1 - e^{-Rt/L})
What each symbol means
| Symbol | What it stands for |
|---|---|
| L | Inductance (H) |
| R | Resistance (Ω) |
| t | Time after closing switch (s) |
| ℰ | Battery emf (V) |
When to use this
Ideal inductor (no resistance), DC source switched at t=0, initial i=0.