Electronic Devices and Circuits How many free electrons does a p type semiconductor has? Those produced by doping as well as thermal energy Only those produced by thermal energy Any of the above Only those produced by doping Those produced by doping as well as thermal energy Only those produced by thermal energy Any of the above Only those produced by doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is In arbitrary direction Normal to both current and magnetic field In the direction of current Antiparallel to magnetic field In arbitrary direction Normal to both current and magnetic field In the direction of current Antiparallel to magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a half wave rectifier, the load current flows Only for the positive half cycle of the input signal For less than fourth cycle For full cycle Only for the negative half cycle of the input signal Only for the positive half cycle of the input signal For less than fourth cycle For full cycle Only for the negative half cycle of the input signal ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Forbidden energy gap in germanium at 0 K is about 0.78 eV 5 eV 10 eV 2 eV 0.78 eV 5 eV 10 eV 2 eV ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a semiconductor diode, the barrier offers opposition to Majority carriers in both regions Holes in P-region only Majority as well as minority carriers in both regions Free electrons in N-region only Majority carriers in both regions Holes in P-region only Majority as well as minority carriers in both regions Free electrons in N-region only ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits For a NPN bipolar transistor, what is the main stream of current in the base region? Drift of holes Diffusion of holes Diffusion of electrons Drift of electrons Drift of holes Diffusion of holes Diffusion of electrons Drift of electrons ANSWER DOWNLOAD EXAMIANS APP
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