A magnetic pressure which sets up or tends to set up flux in a magnetic circuit is called-

Correct option is D

· Magnetomotive force (MMF) is a magnetic pressure that creates or tends to create a magnetic flux in a magnetic circuit.
· It is analogous to electromotive force (EMF) in an electrical circuit. MMF is the driving force that establishes the magnetic field in a magnetic circuit and is calculated as the product of the current and the number of turns in a coil.