BSc IT Sem I ATKT 2015 ATKT Etcs Question Paper - Mumbai University | munotes
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Questions asked in this paper
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Q1 Write a short note on Zener diode. Explain transistor as an amplifier Answer any 2 from following and explain Darlington pair. (10) and explain DC amplifier Draw and explain BJT as a single stage amplifier, Draw and.explain Multistage amplifiers 3 answer any 2 from in Astable Circuit, Ra=25KQ, (10) Calculate Time required to capacitor charge (Tc), time required to capacitor discharge (Td) between positive feedback and negative feedback Difference between Amplifier and oscillator, Draw and explain Hartley Oscillator any 2 from following. (10) need for modulation system Draw and explain any one method to suppress the unwanted sideband explain Envelop detector concept of SSB with advantages and disadvantages Difierence between AM and FM ? Explain pre-emphasis and de-emphasis 3 Explain TDM with advantages and disadvantages the Need for Fiber optic communication Explain ASK & PSK a short note on LED& LASER + Explain single mode & Multi mode fibers
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Q7 Answer any 3 from following Difference between BJT and FET 3- Draw and expla RC Phase Oscillator 5.Explain the sampling
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Q6 Explain Ray Moe
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