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(1) The current in a super conductor once set up continuous for a very long time without attenuations.
(2) The permeability of a super conductor is 0. A super conductor is thus a perfect diamagnetic.
(3) When the current through a super conductor is increased beyond a certain value the super conductor becomes normal.
(4) At 00K all conduction electrons, behave like super electrons, but if the temperature is raised, a few begin to behave as normal electrons, and on further heating the proportion of normal electron increases. Eventually, at the transition temperature, all the electrons become and the metal loses its super conducting properties.
Methods of Demagnetization: 1. A magnet loss it's magnetic properly when it is heated strongly. 2. Practically a magnet can be demagnetized by hammering when it is placed in
When wave emitted by a self luminous object is dispersed by a prism to get the spectrum, the spectrum is known as emission spectrum.
state the conditions under which two forces form a couple and give an example of couple
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What kind of batteries are used in TL coachees. Briefly explain about each one of them? Ans. In TL coaches two kind of batteries are used. They are SMF and VRLA batteries.
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