Electronic Devices and Circuits The sensitivity of human eyes is maximum at Violet portion of spectrum Green portion of spectrum White portion of spectrum Red portion of spectrum Violet portion of spectrum Green portion of spectrum White portion of spectrum Red portion of spectrum ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits How many free electrons does a p type semiconductor has? Those produced by doping as well as thermal energy Any of the above Only those produced by thermal energy Only those produced by doping Those produced by doping as well as thermal energy Any of the above Only those produced by thermal energy Only those produced by doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Fermi level is the amount of energy in which A hole can have at room temperature Must be given to an electron move to conduction band An electron can have at room temperature None of these A hole can have at room temperature Must be given to an electron move to conduction band An electron can have at room temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a semiconductor diode, the barrier offers opposition to Holes in P-region only Majority as well as minority carriers in both regions Majority carriers in both regions Free electrons in N-region only Holes in P-region only Majority as well as minority carriers in both regions Majority carriers in both regions Free electrons in N-region only ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In which of these is reverse recovery time nearly zero? Zener diode PIN diode Tunnel diode Schottky diode Zener diode PIN diode Tunnel diode Schottky diode ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Silicon is not suitable for fabrication of light emitting diodes because it is Wideband gap semiconductor An indirect band gap semiconductor Narrowband gap semiconductor Direct band gap semiconductor Wideband gap semiconductor An indirect band gap semiconductor Narrowband gap semiconductor Direct band gap semiconductor ANSWER DOWNLOAD EXAMIANS APP
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