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Faraday's law relates changing magnetic flux to induced electromotive force. It's the principle behind transformers, generators, and induction cooktops.

Formule

The calculator applies EMF = -dΦ/dt

EMF: -dΦ/dt — -dΦ/dt

Stapsgewijze handleiding

1Enter magnetic flux change and time interval
2The calculator applies EMF = -dΦ/dt
3Results show induced voltage magnitude

Uitgewerkte voorbeelden

Invoer

ΔΦ = 0.1 Wb, Δt = 0.001 s

Resultaat

EMF = 100 V

Rapid flux change induces high voltage

Veelgemaakte fouten om te vermijden

✕Ignoring the rate of change; steady flux produces no EMF
✕Forgetting that area and angle both affect flux

Veelgestelde vragen

What does the negative sign mean?

It represents Lenz's law: induced current opposes the change causing it.

How do transformers use Faraday's law?

Changing current in primary coil creates changing magnetic field, inducing voltage in secondary coil.

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