Answer Posted / ammu

Hi,I'm proud 2 b a E.C.E student because it is d only evergreen subject in d present world.Everybody has been a adduct 2 d communication technologies.So,communication is a must 2 b developed 1 in d future.So,ELECTRONICS&COMMUNICATIONS will never die.so,I prefer 2 choose E.C.E branch.

sir i want polytechnic lecturers model papers plzzzzzzzzz send me my mail id: manisri.bobbala@gmail.com

2597

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Explain why regeneration is not possible in semiconductor

941

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Describe the principle of step-up chopper. Derive an expression for the average output voltage in terms of input dc voltage & duty cycle?

1106

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Define cut off frequency?

1004

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For how much time F-1 vissa is valid?

1944

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What is an instrumentation amplifier?

947

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what is radiation resistance of antenna

1845

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Name the frequency bands are used in satellite communication?

866

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Sir, I wish to appear for the written test in the year 2009. But i have no syllabus on the basis of that the exam was held. So if you kindly give me the syllabus,it's easy for me to be prepared. I have already registered through online,and that no is 10857

1903

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What are the two types of trc?

1347

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Give some examples of power electronics applications in the day-to-day life?

1014

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Name the two forms of boolean expression?

1498

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What is its magnitude for ge and si?

1085

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Why is it necessary to include voltage stabilizer in a power supply?

1071

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State the difference between ac and dc voltage.

960

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