Electronic Devices and Circuits An intrinsic silicon sample has 1 million free electrons at room temperature. As the temperature is increased The number of free electrons increases but the number of holes decreases The number of free electrons and holes increase by the same amount The number of free electrons increases The number of free electrons and holes increase but not by the same amount The number of free electrons increases but the number of holes decreases The number of free electrons and holes increase by the same amount The number of free electrons increases The number of free electrons and holes increase but not by the same amount ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Forbidden energy gap in germanium at 0 K is about 2 eV 10 eV 5 eV 0.78 eV 2 eV 10 eV 5 eV 0.78 eV ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The amount of photoelectric emission current depends on None of these Both frequency and intensity of incident radiation Intensity of incident radiation Frequency of incident radiation None of these Both frequency and intensity of incident radiation Intensity of incident radiation Frequency of incident radiation ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The sensitivity of human eyes is maximum at Red portion of spectrum White portion of spectrum Violet portion of spectrum Green portion of spectrum Red portion of spectrum White portion of spectrum Violet portion of spectrum Green portion of spectrum ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits How many free electrons does a p type semiconductor has? Only those produced by doping Any of the above Only those produced by thermal energy Those produced by doping as well as thermal energy Only those produced by doping Any of the above Only those produced by thermal energy Those produced by doping as well as thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Fermi level is the amount of energy in which Must be given to an electron move to conduction band A hole can have at room temperature None of these An electron can have at room temperature Must be given to an electron move to conduction band A hole can have at room temperature None of these An electron can have at room temperature ANSWER DOWNLOAD EXAMIANS APP
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