Compute the induced electromotive force from turns N, flux change ΔΦ, and time interval Δt as ε = N·|ΔΦ|/Δt.
线圈磁通变化率产生感应电动势。
| Item | Standard / Source | Key Point |
|---|---|---|
| Faraday's law of induction | Faraday (1831); Maxwell's equations | ε = N*|ΔΦ|/Δt; EMF from flux change |