Exam 14: Magnetic Circuits

A magnetic circuit's magnetomotive force is equivalent to the __________ in an electric circuit

The SI unit of measurement for magnetomotive force is the

The curve resulting from plotting the magnetic flux density against the magnetic field strenght applied over a complete cycle, is termed a

A transformer's core is an example of

The SI unit of measurement for magnetic field strength is the

When the magnetic field strength reaches zero, the sample of magnetic material retains some flux density, called

To completely remove any remaining magnetic flux density from the sample of magnetic material, the magnetic field strength must be reversed to a value termed its

Diamagnetic' materials cause a slight __________ in the flux density within that material, when placed within a uniform magnetic field

An 'compound' magnetic circuit is one in which the magnetic flux is formed within

The SI unit of measurement for reluctance is the

A magnetic circuit's reluctance is equivalent to the __________ in an electric circuit

A small area enclosed by the above curve is typical of __________ magnetic materials, such as __________

The volume enclosed by the above curve represents the __________ necessary to completely magnetise and demagnetise a sample of magnetic material in both directions

When the magnetic field strength is reduced towards zero, the resulting change in flux density tends to lag behind, due to a property called

The SI unit of measurement for magnetic flux is the

A closed path within an electrical machine in which lines of magnetic flux are confined is generically termed a

A motor's magnetic circuit is an example of

A magnetic circuit's magnetic flux is equivalent to the __________ in an electric circuit

An 'homogenous' magnetic circuit is one in which the magnetic flux is formed within

The upper end of the above curve starts to flatten off, as the sample of magnetic material approaches