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Working: When plate potential (Vp) is positive, plate current ( Ip) flows in the circuit (because some emitted electrons reach to plate). If + Vp enhances Ip also increases and finally becomes maximum (saturation).
Space charge: If Vpis zero /negative, then electrons collecting around the plate as a cloud which is known as space charge. Space charge reduces the emission of electrons from the cathode.
Characteristic curve of a diode: A diagram represents the variation of Ip with Vp at a given filament current ( If) is called as characteristic curve.
Defects of vision and their correction There is a simple relationship between the focal length F ,the object distance P and the image distance Q of a thin lens fig(1).
What is the best means of solving a vector problem? By using 2 or 3 Cartesian coordinates?
Identify the key terms in the wave function provided by
Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What significant conclusion was drawn from thi
Different theories of nature of Light: What are the different theories which explain the nature of Light? A. The different theories that explains the nature of the light ar
What are the branches of physics? The basic branches of physics are a) Classical mechanics b) Electromagnetism (including optics), c) Relativity, d) Thermodynamics,
Q. Illustrate what are the three particles that make up an atom? Answer:- Atoms are conjured of neutrons, protons, and electrons. The protons as well as neutrons are found
application of direct and indirect trasition
Get an expression for lateral shift produced by a parallel sided glass slab placed in air.
What mechanical and electronic device has a name derived from a Czechoslovakian word meaning "work; compulsory service"? Ans: From a Czechoslovakian word meaning "work; com
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