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Topic :: Semiconductor
For the same order of doping, why does n-type semiconductor exhibit larger conductivity than p-type semiconductor?
1123What is meant by fermi level in semiconductor? Where does the fermi level lie in an intrinsic semiconductor?
1069Which of the two semiconductor materials si or ge has larger conductivity at room temperature? Why?
1237Define what happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.
1054
we know when two atom combine,the electrions are in valance band,but in case of semiconductor doner or acceptor level are above of v.. whyb
When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?
why all high frequency semiconductors have comparatively low current rating?
why the pf of semiconductor device is improved the electrical devices
IN A PN JUNCTION DIODE,( ON FORWARD BIAS ) WHEN ELECTRONS AND HOLES PAIRS MADE AND CURRENT FLOWS,THEIR IS NO END OF ELECTRONS AND HOLES IN A LITTLE SEMICONDUCTOR DEVICE.
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?
Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?
1 explain advantage and dis advantages of FIR filters compared to IIRcouterparts ? 2 what is the need of filtering,ideal response of filters and actual response of filters ? 3 what is CMRR ? 4 which semiconductor device is used ad a voltage regulator and why ? 5 how can we rectify race around condition ?
difference between semiconductor & conductor & insulator?
Define what is meant by fermi level in semiconductor? Where does the fermi level lie in an intrinsic semiconductor?
Differentiate semiconductors, conductors and insulators on the basis of band gap.
What is the mechanism by which conduction takes place inside the semiconductor?
Define diffusion current in a semiconductor.
Define what is the mechanism by which conduction takes place inside the semiconductor?
Can a transistor be obtained by connecting tow semiconductor diodes back-to-back?
