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Question 1 With the help of energy band diagram differentiate between Insulators, semiconductors and metals
Question 2 Explain the operation of RC phase shift oscillator
Question 3 With the help of circuit diagram and wave forms, Explain the operation of full wave bridge rectifier
Question 4 What do you mean by modulation? Explain the need for modulation
Question 5 Explain how op-amp can be used as i) Differentiator ii) Integrator
Question 6 Explain the concept of virtual ground in op-amp
Find I and V in the figure using ideal diode model
Illustrate in detail digital encoders. Illustrate the following with their application: Photo-conductive cell Photo-voltaic cell
Explain Total internal reflection? The refractive index of a medium is defined as the ratio of velocity of light in vacuum to the velocity of light in that medium n x = C/V
The no-load and blocked-rotor tests on a three phase, wye-connected induction motor yield the following results: • No-load test: line-to-line voltage 400 V, input power 1770 W,
Magnetic materials (A) provide path to magnetic flux. (B) are good insulators. (C) are semiconductors. (D) None. Ans: Magnetic materials provide path to
Convert number systems from one base to another, and apply the binary number system to logic circuits 1. Convert the following decimal numbers to binary a. 81 10 b.
what is digital signal
Carrier Concentrations For the calculation of semiconductor electrical properties and analyzing device behavior, it is necessary to know the number of charge carrier
Q. An antenna has an aperture area of 10 m 2 ,an aperture ef?ciency of 0.6, and negligible losses. If it is used at 5 GHz, determine: (a) Its power gain. (b) The maximum pow
Q. A charge variation with time is given in Figure. Draw the corresponding current variation with time.
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