Faraday's Law Calculator
EMF from Flux Change
EMF from Changing Magnetic Field
Formula
EMF = -N(ΔΦ/Δt), where N is the number of turns, ΔΦ is the change in magnetic flux in webers, and Δt is the time interval in seconds. Magnetic flux Φ = BA cos(θ).
Frequently Asked Questions
What is Faraday's Law of induction?
Faraday's Law states that a changing magnetic flux through a coil induces an electromotive force (EMF) proportional to the rate of change of flux and the number of turns in the coil.
What does the negative sign in Faraday's Law mean?
The negative sign represents Lenz's Law, which states that the induced EMF always opposes the change in flux that caused it. This is a consequence of conservation of energy.
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