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Explain factors that change the resistivity of conducting materials.
Temperature- Electrical resistance of most metals rises with increase of temperature whereas those of semiconductors and electrolytes reduce with increase of temperature.
Alloying- It is another factor, that affects the resistivity of a material. With the addition of several impurities to a metal, its resistivity can be changed. It has higher resistivity than that of pure metal.
Mechanical stressing-If a material undergoes a mechanical treatment, its resistivity changes because of mechanical distortion of the crystal structure. For example annealing decreases the resistivity.
Age Hardening- it increases the resistivity of an alloy.
algorithm for Reversing the digits of an integer
why voltages are in multiple in 11
Analysis of diode circuits
Q. An integrator as shown in Figure is to be designed to solve dy(t) / dt + 2000y (t) = 0 with y(0) = 5. If R i is chosen to be 10 k, find C f .
What is meant by microcontroller? A device which having the microprocessor with integrated peripherals like memory, serial ports, parallel ports, timer/counter, interrupt contr
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a) Include a Smoothing Capacitor to the Rectifier circuit and calculate the Output Voltage and Frequency b) Include a 47Ω Load Resistor and sketch the schematic diagram of the c
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Explain n - Type semiconductor. n - Type semiconductor:- (i) If small amount of pentavalent impurity is added with, to a pure semiconductor giving a large number of free
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