Faraday's Law of Electromagnetic Induction (ε = -N dΦ/dt)
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ε = -N dΦ/dt
What each symbol means
| Symbol | What it stands for |
|---|---|
| N | Number of turns in the coil |
| Φ | Magnetic flux through one turn (Wb) |
| ε | Induced emf (V), magnitude often written |d(NΦ)/dt| with sign from Lenz |
When to use this
Closed conducting path or coil; changing flux through the area bounded by the loop. SI: Φ in Wb, ε in V.