The Faraday’s Law Calculator determines the induced electromotive force (emf) in a coil when the magnetic flux through it changes over time, using the equation ε=−N×(ΔΦ/Δt)ε = -N × (ΔΦ / Δt)ε=−N×(ΔΦ/Δt). Here, NNN represents the number of turns of the coil, ΔΦΔΦΔΦ is the change in magnetic flux measured in webers, and ΔtΔtΔt is the change in time measured in seconds. The negative sign shows the direction of the induced emf according to Lenz’s law, meaning the induced current always opposes the change that produced it. This calculator helps users easily analyze electromagnetic induction effects in transformers, electric generators, and magnetic circuits.