why we prefer LED as light source insted of Laser in FSO (FREE SPACE OPTIC)communication.plz give me answer soon

3 Answers  

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sir i did my B.E(E.C.E) with an aggregate of 75.81% nw iam searching for job im interested in getting job in electronic side hw can i know abt interviews.

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what is the diffeence between real time testing and GUI testing?

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What is demodulation?

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Hi i am going to attend the interview for BHEL. can you please help out in knowing about the area of preparation. I am apprearing for supervisior trainee post. Please share your views on this. Thanks (frm hydrabad)

1 Answers   Bhel,

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How to select lightning arrester for line trap? What are the criteria?

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what is purpose of use stug.

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What do you understand by ammeter shunt?

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What is modulation? And where it is utilized?

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proff of ERLANG B formula???

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with the aid of diagrams explain pulse modulation,pulse position modulation and pulse amplitude modulation

1 Answers   Value Labs, Zimbabwe Broadcasting Corporation ZBC,

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plz send the rrb junior engg and assistant loco pilot previous quastion papers

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