It is said that buffer is used when any circuit has to drive large outputs. why is buffer used?

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Define virtual grounding?

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sir i am completed B.E in 2006 i wrote RRb Section Engineer Exams two times .how to prepare and how is ask previous question paper some previous question paper send through mail id

2 Answers   RRB, Spectrum,

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what is practical application of flip flop, decoder, mux, demux and encoder?

7 Answers   Jyothy Laboratories,

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Tell me how to calculate knee point voltage? Describe its purpose for differential protection.

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Hi, Can any1 pl send me the question pattern of HPCL exam for the ELECTRONICS stream.pl send it to meerasowmi@gmail.com.hope to hear frm u very soon....

0 Answers   HPCL,

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which taype question pattern in hr round in telecom feild.

0 Answers   Huawei,

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What is meant by led?

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How the current is reduced to zero in a photodiode?

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What are the advantages of sequence control of ac voltage regulators?

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Explain what is an adder or summing amplifier?

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hey any one has sample placement papers for citrix r&d, bangalore, pls send it to me on ecpradeep2006@gmail.com, i have got my tests on 3rd sep

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