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If an FM signal is given by sFM(t) = 100 cos [2πfct +100 m(τ ) dτ ] and m(t) is given in figure, sketch the instantaneous frequency as a function of time and determine the peak frequency deviation.
Q. With a suitable block circuit, show how linear sweep voltage is generated ? The above figure shows a basic sweep waveform generator. The switching action of the switch
Q. An n-channel enhancement MOSFET operates in the active region with very large V A , v GS = 6V, V = 4 V, and i = 1 mA. Calculate K.
Q. Explain Crystal Oscillator The frequency of a crystal-controlled oscillator is held constant to a high degree of accuracy by the use of a quartz crystal. The frequency depen
List out the five categories of the 8085 instructions. Give examples of the instructions for each group. 1. Data transfer group - MOV, MVI, LXI. 2. Arithmetic group - ADD,
Q. Explain about blocking probabilityand Grade of service? And what do you mean by delay systems in telecommunication networks? Ans: Grade of service: In loss systems, traff
list the key parameters to describe the ideal operational amplifier
Q. What do you mean by Induction? The essentials for producing an emf bymagneticmeans are electric andmagnetic circuits,mutually interlinked. Figure (a) shows a load (or sink o
Q. An RG-139/U rectangular waveguide is given to have dimensions a = 0.8636 mm and b = 0.4318 mm. Compute the theoretical and practical frequency ranges of operation for the guide.
Buck Converter In buck converters the output voltage is always less than the input voltage. The basic circuit of buck converter is shown in figure. The operation of th
Q. A 60-Hz, 440-V, three-phase system feeds two balanced wye-connected loads in parallel. One load has a per-phase impedance of 8 + j3 and the other 4 - j1 . Compute the real po
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