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Q. (a) In the circuit shown in Figure the zener diode (with zero zener resistance) operates in its reverse breakdown region while the voltage across it is held constant at VZ and the load current is held constant at VZ/RL, as the source voltage varies within the limits VS,min S S,max. Find Imax and Imin for the corresponding Rmin and Rmax, respectively.
(b) Assuming RS = 0 and the source voltage to vary between 120 and 75 V, for a load resistance of 1000, determine themaximum value of the regulator resistor R if it is desired to maintain the load voltage at 60 V. Also find the required power rating of the zener.
Q. Differential amplifier to eliminate the common-mode voltage? The transducer in some cases may have a local ground that cannot be disconnected. In such a case, a separate gro
Q. (i) What are the different types of plots for frequency response in an RC coupled amplifier? (ii) What is a Bode Plot? What are it's uses? The different types of
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Q. What do you understand by demagnetizing and cross magnetizing effects of armature reaction in a d.c. machine. Derive the expression for calculation of demagnetizing and cross
Q. In a CD amplifier,given Rs =4k?, µ=50 and rd= 35k μ. Find the voltage gain Av. The voltage gain, A v = Vo / V i = µR s / (µ+1) R s + rd = 50*4* (103 )/ (50+1)*4*103
Q. What are multistageand single stage networks? Compare strengths and weaknesses of each. OR List the key difference in single stage, two stage and three stage Networks. A
Q. What is Schokleys Equation. Find out a relation between Vgs and Ids? Schokleys Equation is used for defining the relation between the Gate source voltage and the Drain curre
1. Produce a fully-labelled sketch to show the components of a Direct Digital Control system. 2. State the minimum number of printed-circuit cards required to construct a basic co
The programming Model of 8085 Microprocessor The programming model of 8085 microprocessor is shown in figure below in this model various 8 bit and 16 bit registers a
design a 32:1 multiplexer using two 16:1 multiplexer
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