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Amplifier is a functioning by which the amplitude of variation of ac signal voltage / current/ power can be enhanced
(i) Principle and circuit diagram: The amplifying action of the triode is based on the fact that small change in grid voltage produces the similar change in the grid voltage as because of a large change in the plate voltage. A circuit for triode as an amplifier
(ii) Working: First of all the mutual characteristic curves of a triode to be used as an amplifier is plotted and the grid potential - Corresponding to the mid-point of straight portion of characteristic curve is noted.
An object that is 24 cm from a convex lens produces a real image that is 13 cm from the lens. What is the focal length of the lens?
A quarter of a wavelength is equal to how many degrees of phase? A quarter of wavelength is equaivalent to 90 degrees of phase.
If a force applied on a body causes a alteration in the normal positions of the molecules of the body, resulting in a alteration in the configuration of the object either in length
Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.
Explain the differences between heat transfer mechanisms in solids, liquids, gases (conduction, convection, radiation) Explain the combinations of substances, in terms of molecula
Diffraction of water waves Let vibrator produce circular wavefronts travelling along (P). Let X, Y be two vertical glass plates immersed in the tank far away from the vib
(i) These are positive ions having similar mass if the experimental gas does not have isotopes. However if the gas has substances then positive pulses are group of positive ions ha
Q. What is a capacitor? Define: capacitance. i) A capacitor is a apparatus for storing electric charges. ii) The capacitance of a conductor is defined like the ratio of the
Second law of black hole dynamics Along with black-hole interactions, or interactions among normal matter and black holes, the total of the surface areas of all black holes i
Q. Show the use of Fire extinguisher? Ans: a) Pull the pin at the top of the extinguisher. b) Aim the nozzle towards the base of the fire. c) Stand approximately 8
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