It is defined as the ratio of magnetomotive force (mmf) to magnetic flux. However, magnetic flux passing through a reluctance does not give rise to dissipation of heat as it does for current through a resistance. Explanation: Ohm’s law for the magnetic circuit’s states that the MMF is directly proportional to the magnetic flux hence as the magnetic flux decreases, the MMF also decreases.

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## What Happens to the MMF When the Magnetic Flux Decreases

Explanation: Ohm’s law for the magnetic circuit’s states that the MMF is directly proportional to the magnetic flux hence as the magnetic flux decreases, the MMF also decreases.

Explanation: Ohm’s law for the magnetic circuit’s states that the MMF is directly proportional to the magnetic flux hence as the magnetic flux decreases, the MMF also decreases. 3. Calculate the MMF when the magnetic flux is 5Wb and the reluctance is 3A/Wb.

### What is the relationship between flux and MMF?

mmf is result of current loops around a magnetic material. This makes flux in the magnetic circuit in closed loops. Remeber here the magnetic properties... Loading… You can imagine the relation between flux and mmf in magnetic circuit as that between current and emf of an electric circuit. Let’s Read Together.

### What is the difference between magnetic field and magnetic flux?

Difference Between Magnetic Field & Magnetic Flux The most significant difference between the magnetic field and the magnetic flux is that the magnetic field is the region around the magnet where the moving charge experiences a force, whereas the magnetic flux shows the quantity or strength of magnetic lines produced by the magnet. Let’s Read Together.

### How do you calculate magnetic flux?

Explanation: Ohm’s law for the magnetic circuit’s states that the MMF is directly proportional to the magnetic flux hence as the magnetic flux decreases, the MMF also decreases. 3. Calculate the MMF when the magnetic flux is 5Wb and the reluctance is 3A/Wb. Substituting the given values from the question, we get MMF = 15At. 4. Let’s Read Together.

### What is the difference between MFM and flux density?

MMF is the driver that gives rise to the flux in a magnetic circuit. It is measured in ampere-turns (A-t) and is analogous to voltage in an electric circuit. Flux density is a measure of the total magneticstrength” or density pf lines of force set up in a magnetic circuit. It is analagous to current set up in an electric circuit. Let’s Read Together.