What is meant by 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? What do you mean by an ideal voltage source? What do you mean by 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 briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the 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? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

0 Answers   MAHINDRA,

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When a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

0 Answers  

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What happens to the residual resistivity of metals

0 Answers   C DAC, CDAC,

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WHICH IS BEST BOOK FOR LATERAL ENTERY TO B.TECH (LEET)

8 Answers   Indraprastha University,

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what is meant by differential amplifier? what is primary function?

2 Answers  

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i am prepared to sectionengineer exam so which books are referd for that exam pls tell me

0 Answers  

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what is d difference between digital image processing & digital signal processing?

2 Answers  

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What is GSM?

7 Answers  

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Explain the difference between plc and dcs?

0 Answers  

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What is the use of ranging?

0 Answers  

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what is the differences between voltage and current controlled devices?

0 Answers  

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what is BFU ? what is the working of BFU in BTS?

0 Answers  

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