In this article, you will find the Study Notes on Magnetomotive Force which will cover the topic as Introduction and MMF equation.
Magnetomotive Force (MMF) performs a similar role in a magnetic circuit to the electromotive force (EMF) of a battery in a basic electrical circuit, thus acting as the 'prime mover' of an electromagnetic system.
The MMF resulting from passing an electrical current through a coil is given by the electrical current flowing through the coil multiplied by the number of turns, as shown in the following equation:
Equation: MMF, Fm = I × N.
MMF is measured in amperes (A) rather than ampere-turns, since 'turns' is not an SI unit.
Magnetomotive force is also used in the derivation of magnetic field strength (H), as shown below. H = I N / l = Fm / l
Fm = Hl
All the Best.
Team Gradeup!
Comments
write a comment