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Doping:
Silicon and Germanium have low values of electrical conductivity because of few free electrons. In order to improve the electrical conductivity of semi conductors' pentavelent element such as Phosphorus or Arsenic or a trivalent element Boron or Indium is added to Silicon and Germanium. This process is known as doping.
OR
The process of mixing of small quantity of Arsenic or Phosphorus in silicon or Germanium to make a n-type substance or Boron or Indium in Silicon or Germanium to make P-type substances is known as doping.
a beam of electron is incident on barrier 6eV high and 0.2 nm wide. find the energy in eV these should have if 1% of them are to get through the barrier.
concave grating and rowland''s mounting theory
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Q. In an ideal transformer, the transformer ratio is 1:20.The input voltage and the input power are 6 V and 600 mW respectively. Compute the primary and the secondary currents.
A particle has initial velocity 5 m/s due east and acceleration 2 m/s^2 due west. Find the distance traveled during 3rd second of the motion.
FRAME OF REFERENCE: "A set of reference axis needed to locate the position of an object in space is known as a frame of reference"
Resonance When the frequency of driving force become equal to the natural frequency of an oscillating system, the driving force provides maximum energy and the oscillating syst
Q. What are the uses of an electron microscope? Uses of electron microscope: (i) It is utilized in the industry to study the surface of metals, structure of textile fib
I need 4 numerical question about mobility
A data transmission rate; the maximum amount of information (bits/second) that can be transmitted along a channel is called band width.
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