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Phase advancers: Phase advancers are used to better the power factor of induction motors. The low power factor of an induction motor is because of the fact that its stator winding draws exciting current, which lags behind the supply voltage by 900. If the exciting ampere turns can be given from some other a.c. source, then the stator winding will be relieved of exciting current and the power factor of the motor can be better.
An electron follows a helical path in a uniform mag-netic field of magnitude 0.300 T. The pitch of the path is 6.00 um, and the magnitude of the magnetic force on the elec-tron is
In a young's double slit interference pattern, the fringe width is 0.1 mm. Determine the fringe width if the wave length of light is increased by 10% and the distance between the s
a) Formation of domains b) On the basis of domains formed c) These are strongly attracted in an external magnetic field i.e. they easily go from low to high field region d
Why bulky group present at axial position of chair or boat conformer is less stable compared to equitorial position? Ans) Let the bulky group has a large mass M. suppose it is
Combination of Resistance: In electric circuits the resistors are interlinked in two ways. Resistance in Series Resistance in Parallel
Illustrates term refractive index in optical fibres? Refractive Index: Optical fibres consist of two layers which are core and cladding with various refractive indices. T
A man exerts a force of 310 N on a lever to raise a crate with a mass of 910 kg. If the efficiency of the lever is 78 percent, what is the lever's IMA?
Quantum Theory of Light: Wave theory failed to describe some new effects in 19th century. A German Physicist Max Plank gave theory about the nature of light. 1. Light is emi
What is Ancient view Ancient view: objects tend to stay if they are in motion; force is needed to keep something moving. This was a natural thing to believe in because we see
Obtain Relativistic expression for the kinetic energy of the particle. Derive mass energy relation. Show that total energy E and momentum P are related, where m is rest mass and
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