Mutual Inductance (ε₂ = -M di₁/dt; M = N₂Φ₂₁/i₁)
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ε₂ = -M di₁/dt; M = N₂Φ₂₁/i₁
What each symbol means
| Symbol | What it stands for |
|---|---|
| M | Mutual inductance (H) |
| i₁ | Current in primary coil |
| Φ₂₁ | Flux through one turn of coil 2 due to i₁ |
When to use this
Fixed geometry; linear media. M₁₂ = M₂₁ = M for a passive pair.