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Uses of Transistor:
In a transistor the base current it plays a significant role in the collector current IC. A small change in the base current forms a large change in the collector current. Because of this characteristic a transistor can also be used as an amplifier in more electronic devices.
Q. A light of wavelength 6000 0 A falls normally on a thin air film, 6 dark fringes are seen between two points. Compute the thickness of the film. 2μt = nλ Thickness of t
Q. If a dog rolled around on a carpet as well as gets statically and a flea jumps on it will the flea get electrocuted? Answer:- It will but possibly not and such experime
Organ pipes are the musical instruments which are used for making musical sound by blowing air into the line. Longitudinal stationary pulses are created on account of superimpositi
Op-amp as a Subtractor A fundamental differential amplifier can be used as a subtractor as shown in figure (c) In this figure, all external resistors are equal in value, so
Functions of the commutator: A commutator is a device, which under certain conditions changes ac into dc and vice versa. The commutator is a form of rotating switch placed
Cherenkov [Cerenkov] radiation (P.A. Cherenkov) Radiation emitted through a massive particle that is moving faster than light in the medium by which it is travelling. None of
Ehrenfest paradox (Ehernfest, 1909) The special relativistic "paradox" including a quickly rotating disc. As any radial segment of the disc is perpendicular to the direction o
A single-phase, 50Hz transformer has 40 primary turns and 520 secondary turns. The cross-sectional area of the core is 270cm 2 . When the primary winding is connected to a 3
Describe the formation of Newton''s rings.
The charge and discharge characteristics of lead battery: During discharge the plates are converted into lead sulphate, the water content of the electrolyte increases, the inte
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