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a. Explain the following terms: (6)
(i) Persistence of vision
(ii) Flicker in motion pictures
b. What is meant by blanking? What is the need of blanking pulses? Compare the differences among horizontal and vertical blanking. (7)
c. List out the applications of Television.
Phenomenon - Fet operation: For either improvement- or depletion-mode devices, at drain-to-source voltages very much less than gate-to-source voltages, changing the gate volta
Q. Explain the different types of probes used in cathode Ray Oscilloscope (CRO). Sol. probes: The probe performs the very important function of connecting the test circuit
Step Up Chopper In this chopper average output voltage is greater than input voltage. The circuit different mode of operation and current waveforms are show. When
What is the main thing to look for in calculations of air gaps?
Q. Open-loop control system? An open-loop system is one in which the control action is independent of the output or desired result, whereas a closed-loop (feedback) system is o
A 6 V / 2.5 mA relay is connected in the output stage of a transistor. The coil is made of aluminium having α = 0.004. The resistance of the coil is 600 ? at 32 o C. Calculate th
Q. Open-circuit and load characteristics of generator? The open-circuit and load characteristics of a separately excited dc generator, along with its schematic diagram of conne
1. An analog information signal, whose maximum frequency is 6000Hz, is to be transmitted using a PCM system. The quantization error must not exceed the 1 % of the peak-to- peak an
For the network shown in Figure, find the current in each resistor by means of nodal analysis.
Q. Frequency response of amplifiers? All amplifiers exhibit variations of performance as the signal frequency is changed. The frequency response of an amplifier may be defined
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