Why is fet known as a unipolar device?

0 Answers  

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Draw the two transistor model of scr and derive an expression for anode current?

0 Answers  

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hi i am sushil can anyone send me the previous year question paper for AAI(JR.excecutive,electronics)to my email kingston_s007@yahoo.com

0 Answers   AAI Airports Authority Of India,

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what is the difference b/w gsm and cdma

1 Answers  

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with the aid of diagrams explain pulse modulation,pulse position modulation and pulse amplitude modulation

1 Answers   Value Labs, Zimbabwe Broadcasting Corporation ZBC,

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why do we do the experiments regarding motors(swinburns, magnetization of dc shunt motor....) with constant speed

1 Answers  

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What is the ratio of majority and minority carriers in intrinsic and extrinsic semiconductors?

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What is dvm?

1 Answers   Dev Institute,

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96 The high-frequency response in RC active filters using op-amp is due to A BW B Gain C Gain,BW product D High frequency

1 Answers  

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What is a rectifier?

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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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How emergency call get through without coverage but not other call at that time?

0 Answers   Airtel, Intel,

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