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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How is cro superior to ordinary measuring instruments?

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Where will be the actual address of the subroutine is placed for vectored interrupts?

1 Answers   Cisco,

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In a mosfet, what does the pinch off voltage refers to?

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if i get a job in bsc .what are the main key duties to handle

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Capacitors are mainly used in

9 Answers  

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how an emitter coupled logic works?

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A description of the fundamental elements that are required to make a digibox. I assume that they all record nowadays?

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what is artificial intelligence?isn't it is dangerous?

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Explain how to design a software ic using vhdl?

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0 Answers   Bosch,

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Can anyone send me question papers for section engineer for railways and send me on my id- abhay_jg@yahoo.com

0 Answers   RRB,

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