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user36790
user36790

ElectromotoricElectromotive force (EMF), if generated, whenever the magnetic flux changes in time. In other words, it is proportional to its derivative viz. $$\mathscr E= -\frac{\mathrm d\Phi_\textrm{total}}{\mathrm dt}$$ where $\Phi_\textrm{total}= \textrm{total magnetic flux}= \Phi_\textrm{external} + \mathrm Li\;.$

So, it can be generated also in the moment when the flux goes through zero; and moreover, in an ordinary transformer fed by a sine wave AC current, the EMF reaches its maximum at this very moment.

Electromotoric force (EMF) if generated whenever the magnetic flux changes in time. In other words, it is proportional to its derivative.

So it can be generated also in the moment when the flux goes through zero; and moreover, in an ordinary transformer fed by a sine wave AC current, the EMF reaches its maximum at this very moment.

Electromotive force (EMF), if generated, whenever the magnetic flux changes in time. In other words, it is proportional to its derivative viz. $$\mathscr E= -\frac{\mathrm d\Phi_\textrm{total}}{\mathrm dt}$$ where $\Phi_\textrm{total}= \textrm{total magnetic flux}= \Phi_\textrm{external} + \mathrm Li\;.$

So, it can be generated also in the moment when the flux goes through zero; and moreover, in an ordinary transformer fed by a sine wave AC current, the EMF reaches its maximum at this very moment.

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dominecf
dominecf
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Electromotoric force (EMF) if generated whenever the magnetic flux changes in time. In other words, it is proportional to its derivative.

So it can be generated also in the moment when the flux goes through zero; and moreover, in an ordinary transformer fed by a sine wave AC current, the EMF reaches its maximum at this very moment.