EMF in DC Machines Formulas

EMF is defined as the electro motive force which is needed to move the electrons within an electrical conductor to generate flow of current through the conductor. And is denoted by E. EMF is usually measured using the Volt for Electric Potential. Note that the value of EMF is always negative.

Formulas to find EMF in DC Machines

fxEMF Generated in DC Machine with Lap WindingGo

List of variables in DC Machines formulas

fx Rotor Speed Go

fx Number of Conductors Go

fx Flux per Pole Go

FAQ

What is the EMF?

EMF is defined as the electro motive force which is needed to move the electrons within an electrical conductor to generate flow of current through the conductor. EMF is usually measured using the Volt for Electric Potential. Note that the value of EMF is always negative.

Can the EMF be negative?

Yes, the EMF, measured in Electric Potential can be negative.

What unit is used to measure EMF?

EMF is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which EMF can be measured.

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