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What is meant by doping? How does it affect a semiconductor?
Doping: The process through which an impurity is added to semiconductor is termed as doping. A semiconductor to that an impurity at controlled rate is added to make this conductive is termed as an extrinsic semiconductor. The reason of adding impurity into the semiconductor crystal is to raise the number of free electrons or holes to make this conductive. When pentavalent impurity is added to a pure semiconductor a large number of electrons will exist in this. If a trivalent impurity is added many of holes will exist into the semiconductor.
If a current is passed through a coil, it creates a flux within the coil. Any attempt to change this flux will create a back emf that acts to oppose the change. Consider again
Q. Explain, with the aid of diagrams, the following in relation to the construction of power transformers. Include the advantages and disadvantages in your description. a) Core
Find the resistance of 1 km of copper cable having a diameter of 10 mm if the resistivity of copper is 0.017 x 10 -6 Ωm.
Level 1 is means of sending bit streams over a physical path. It uses times lot 16 of a 2 M bit/s PCM system or times slot 24 of a1.5 M bit/s system. Level 2 performs functions
Classification of Solids into Insulators, Semiconductor and Conductors A solid can conduct electric current if the electrons can move in it. This is possible only when an ener
A 300 km, 3-phase, 50Hz transmission line has spacing as shown in Figure. Each phase of the line consists of a bundle of three conductors. (a) Find the total per-phase inductanc
what is the difference between latch and flipflop
Q. What is Stored Program Control ? Stored Program Control:Modern digital computers use stored programmed concept. Here, a program or a set of instructions to the computer is s
Q. What do you mean by Transconductance? The control that the gate voltage has over the drain current is measured by transconductance and is similar to the transconductance of
With neat diagram indicate how a simple NAND gate decoder is used to select a 2716 EPROM memory component for memory locations FF800H-FFFFFH. Simple NAND gate Decoder: As the 2
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