![]() ![]() Next, determine the number of turns in the coil. In this example, the current is 400 amps. The following example outlines the steps and information needed to calculate the Magnetomotive Force.įirst, determine the current of the system. ![]() The MMF value depends on three variables: the number of turns in the coil, the current flowing through it, and its geometric construction (such as whether it has multiple coils or layers). Magnetomotive force (MMF) is the property that drives currents in coils and causes them to produce a magnetic field. To calculate the Magnetomotive Force, multiply the current by the number of turns. Where mmF is the magnetomotive force (ampere-turns).The following equation is used to calculate the Magnetomotive Force. Enter the total number of turns or conductors and the current into the calculator to determine the magnetomotive force.
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