What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

16 Answers   College School Exams Tests, Infosys, Persistent, TCS, Wipro,

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What is channel coding?

1 Answers  

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am going 2 write railway exam 4 d post of section engineer..i wnt 2 knw abt d que pattern n d previous year que papers

0 Answers   RRB,

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Define what do you mean by drift velocity and mobility of a free electron?

0 Answers  

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Why do we use distinct polarisation (UL-H:DL-V) while uplinking and downlinking rather than same (UL-H:DL-H)?

0 Answers  

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What is conductor?

0 Answers  

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what is the representation of a discrete signal?

6 Answers  

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If a square wave is integrated by integrator using op-amp, the output is A Triangular wave B Ramp C Sine Wave D None of these

1 Answers  

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what is need of rectifier in electronics?

4 Answers   TCS,

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In the field of microprocessor what is DMA?why it is used?

13 Answers   Siemens,

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what is the source of emf waves?

1 Answers  

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How the battery of a mobile phone is charged??? whether it is charged uniformly or charges fast initially and slowly later on during reaching its full charging value????

1 Answers  

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