An EMF is generated in any conductor that experiences a changing magnetic flux.
For a conducting coil, the size of the effect increases with increasing turns of the wire, so we refer to a change in flux linkage.
Flux linkage is the is the magnetic flux in respect to a coil. To find the flux linkage, its magnetic flux (B x A, where B is the magnetic flux denisty (field strength), and A is the area) times by the number of coils. Flux Linkage (NΦ) = NBA.
Both Flux and Flux Linkage are measured in Weber (Wb).
The flux density (B) is a measure of the magnetic field strength. It tells us how close together the magnetic field lines are. Flux density is measured in Tesla (T).
1 Tesla = 1 Weber/ 1 m^2. T = WBm^-2.
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