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Frequently Asked Questions - Electronics
- 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?
- What do you mean by ASCII, EBCDIC?
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