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Where are the successive approximation type adc’s used?

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What is meant by the temperature coefficient?

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What is D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? Explain an ideal voltage source? Explain zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 Answers   DRDO, Electronics,

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

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

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why cant dc is transferd from one place to another place as ac?

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• The silicon of a new device has memory leak. When all "0" are written into RAM, it reads back all "0" whithout any problem. When all "1" are written, only 80% of memory cells are read back correctly. What can be possibly the problem with the RAM?

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Wats da diff b/w ithernet communication and profibus communication?

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what is the basic steps for designing an ups,inverters, and battery connections for series and parrallel connections in ups

0 Answers   Godrej,

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modulation means

11 Answers   Assurgent,

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i m selected in AAI JE. my interview is on 25 sept. 2010. i don't hv any idea abt aai interview. can anyone help me, i want to know interview qus of aai. so pls help me... my e-mail id -- mailmanish_kumar@yahoo.co.in

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what is the difference between electronics and electrica?

7 Answers  

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