^Retentivity (ob) :
The value of I even when the H is reduced to zero.
Entries by kp-web-admin
^Hysteresis
Hysteresis Hysteresis is the lag of intensity of magnitisation (I) behind the magnetising field (H) is called hystersis.
^Ferromagnetism
Ferromagnetism The existence of domains leads to strongest magnetism in ferromagnetics. Due to the presence of cohesive forces in ferromagnetics […]
^Paramagnetism
Paramagnetism About 90% paramagnetism is due to spin motion of electrons. Paramagnetics are permanent weak magnets & posses magnetism even […]
^Diamagnetism
Diamagnetism Diamagnetics are temporary weak magnets posses magnetism only when placed in external magnetising field. It is found in the […]
^Cause of magnetism
Cause of magnetism 1. Electrons, protons, neutrons all posses magnetic moment due to both orbital & spin motions. This magnetic […]
^The analogy
The analogy Both electricity & magnetism has several uses in daily life. Both have the following common features: 1. Are […]
^Properties of a magnet
Properties of a magnet 1. The pole strength ‘m’ of a magnet depends upon the nature of material of a […]
^Motional emf
Motional emf No motional emf will be produced across the conductor if any two vectors are parallel to each other. […]
^Some more useful situations
Some more useful situations 1. The ratio of magnetic dipole moment to angular momentum for a uniformly charged configuration 2. […]
