Electromagnetic Induction

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5 Terms

1
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what is flux? and formula

lines of force that exist at 90 degree

for electric field = EAcostheta

for magnetic field = BAcostheta

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Faraday’s first law

when there is change in magnetic flux, an emf is induced in the circuit

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faraday’s second law

the magnitude of emf induced is directtly proportional to rate o change of flux

e = K x dflux/dt

k= 1

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Lenz law

Lenz just gave directions

The direction of the induced current is such that it creates a magnetic field that opposes the change in magnetic flux that caused it.

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magnetic flux

measurement of magnetic field which passes through a given area