what is the difference between drift current and diffusion current.

26 Answers   Ghana Telecom University, TCS,

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What is the use of Fourier Transform?

3 Answers  

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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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One week before i was joined in one rfid based company.i don't know about the future of that field.can you tell me that future.

0 Answers  

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need previous placement test papers of infosys and soctronics

0 Answers  

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what is refractive index?

1 Answers  

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please send me last year question for executive tranees in ntpc on my email ID rajthakur2091@gmail.com

0 Answers   NTPC,

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What is meant by pwm control in dc chopper?

0 Answers  

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What is natural commutation?

0 Answers  

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WHAT IS ARROW DISPLAY IN TRANSISTOR SYMBOL DIAGRAM? IN NPN AND PNP BOTH?//

3 Answers   Bhel,

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What do you mean by donor and acceptor impurities?

0 Answers  

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What is ascii in reference to electronics?

0 Answers  

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