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F2802 Pages: 2

OR
Explain with circuit diagram the working of common emitter amplifier. (10)
Module IV
Implement OR and AND gates using NOR gates only. (5)

Write the characteristics of an ideal opamp. Define the terms CMRR, slew rate (5)
as related to opamp.
OR 1
Draw the block diagram of digital storage oscilloscope and explain the functions (10)
of each block.
Module V
Define amplitude modulation. Derive an expression for representing amplitude (5)
modulated wave.
With block diagram explain functions of a satellite transponder. (5)
OR
Explain working of super heterodyne receiver with block diagram. Write its (10)
advantages compared to tuned radio frequency receivers.
Module VI
Explain how light is transmitted through optical fiber. Write two advantages of (5)
optical communication systems.
With block diagram explain working of cable TV network. (5)
OR
Explain the concept of cells, frequency reuse and hand off in cellular mobile (10)

communication.
‏ماد عاد عاد بد‎

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