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phi

symbol for magnetic flux

B

symbol for magnetic flux density

N phi = NBA

flux linkage

weber = Wb

unit of flux and flux linkage

Emf = change in flux linkage / time taken

Faraday's law equation in words

Emf = - [delta (N phi) / delta t]

Faraday's law in symbols

Lenz's law

of what is the negative sign in Faraday's law equation a reminder?