basic

Faraday Induced EMF from Flux Change Calculator

ε = −N · ΔΦ / Δt (Faraday-Lenz law).

Compute the average induced EMF in a coil of N turns when the magnetic flux changes from Φ₁ to Φ₂ over time Δt: ε = −N · (Φ₂ − Φ₁) / Δt. Reports the magnitude of the induced EMF in volts.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Wb
Wb
s

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

ε = −N · ΔΦ / Δt

In depth

Compute the average induced EMF in a coil of N turns when the magnetic flux changes from Φ₁ to Φ₂ over time Δt: ε = −N · (Φ₂ − Φ₁) / Δt. Reports the magnitude of the induced EMF in volts.