Recent questions tagged permeability

Description : (a) Define permeability. (b) Define MMF. (c) Define form factor of an alternating quantity. (d) Define frequency and time period of an alternating quality. (e) Define transformation ratio of transformer. ... and state the meaning of each term used. (g) Give two applications of single phase motors. 

Last Answer : Permeability : It is the ability of a magnetic/Non magnetic material to allow setting up of flux in it.  MMF : The magneto motive force (MMF) is the force required to setup flux in a magnetic / ... applications of single phase motors : Water pumps, ceiling fan, lathe machine

Description : Define magnetic permeability. State and explain the factors affecting permeability of magnetic materials

Last Answer : Permeability : The capability of the magnetic material to conduct the magnetic flux is known as permeability. Permeability and hysteresis loss are inversely related to each other. Factors ... impurities affect the geometric pattern of the crystals and are harmful to the magnetic property. 

Description : Permeability formula

Last Answer : Permeability formula

Description : Define permeability.

Last Answer : Permeability is the ability with which the magnetic material forces the magnetic flux through a given medium. Permeability is the magnetic property of the medium. The flow of flux in a magnetic ... field strength (H) is same for both. Relative permeability is unitless it has no dimensions.

Description : The magnetic permeability of a diamagnet is _________ A) More than that of vacuum B) Same as that of vacuum C) Less than that of vacuum D) 3.14 times that of vacuum

Last Answer : The magnetic permeability of a diamagnet is Less than that of vacuum 

Description : Relative permeability of vacuum is?

Last Answer : Relative permeability of vacuum is 1.

Description : Permeability in a magnetic circuit corresponds to______ in an electric circuit.

Last Answer : Permeability in a magnetic circuit corresponds to conductivity in an electric circuit.

Description : The relative permeability of a ferromagnetic material is?

Last Answer : The relative permeability of a ferromagnetic material is more than 100 or 1000.

Description : Reduction in core losses and increase in permeability are obtained with transformer employing?

Last Answer : Reduction in core losses and increase in permeability are obtained with transformer employing core built-up of laminations of cold rolled grain oriented steel.