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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.
Two projects using the principle of functional independence, increases system accuracy?
A network function is given by (a) For x(t) = δ(t), obtain y(t). (b) For x(t) = u(t), obtain y(t). (c) For x(t) = e -4t , obtain y(t). (d) Express the differenti
Describe Bezier Curve ? What is Converse-Hull Property of Bezier Curve?
Q. If a single phase motor fails to run or start slow what action to be taken. Ans: If it is not starting check the supply and test the winding if it found normal check
Dc Circuits: In this unit, you have learned about methods of network analysis which are general in nature such as KCL, KVL, Nodal and Mesh analysis. These general methods may
Ask qu1. If the resistor Radj is adjusted to 175O what is the rotational speed of the motor at no-load conditions? 2. Assuming no armature reaction, what is the speed of the motor
Q. Consider a BJT switch connected to the next stage, as shown in Figure, in which iout is likely to be negative when v out is high. Assume V CC = 5 V, R C = 1k, and the high r
Dielectric: Insulator that is used among the two plates of a capacitance is called as dielectric. Electric field exists in the dielectric and the flux density depends on th
What are the modes of operations used in 8253? Each of the three counters of 8253 can be operated in one of the following six modes of operation. 1. Mode 0 (Interrupt on ter
Name the materials used in case of Solder and give reasons. Solder : For soft solders tin, lead (in 50-50 ratio) alloy and for hard solders copper- zinc and silver alloy
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