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PhysicsMagnetic Effects of Electric Current
Electromagnetic Induction
Faraday's law: change flux faster to induce a bigger EMF.
Controls
50
0.05 Wb
0.1 s
Live result
Induced EMF
25V
EMF (V)25
Generator — coil cutting field linesInduced EMF: 25 V
EMF = −N·ΔΦ/Δt. The minus sign (Lenz's law) shows the induced current opposes the change.