Electronic Devices and Circuits Silicon is not suitable for fabrication of light emitting diodes because it is An indirect band gap semiconductor Narrowband gap semiconductor Wideband gap semiconductor Direct band gap semiconductor An indirect band gap semiconductor Narrowband gap semiconductor Wideband gap semiconductor Direct band gap semiconductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits An electron in the conduction band Has higher energy than the electron in the valence band Has lower energy than the electron in the valence band Jumps to the top of the crystal Loses its charge easily Has higher energy than the electron in the valence band Has lower energy than the electron in the valence band Jumps to the top of the crystal Loses its charge easily ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Forbidden energy gap in germanium at 0 K is about 0.78 eV 2 eV 10 eV 5 eV 0.78 eV 2 eV 10 eV 5 eV ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The most commonly used semiconductor material is Mixture of silicon and germanium Silicon None of these Germanium Mixture of silicon and germanium Silicon None of these Germanium 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 doping Only those produced by thermal energy Those produced by doping as well as thermal energy Any of the above Only those produced by doping Only those produced by thermal energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Assertion (A): A JFET can be used as a current source.Reason (R): In beyond pinch off region the current in JFET is nearly constant. Both A and R are true and R is correct explanation of A A is true but R is false Both A and R are true but R is not a correct explanation of A A is false but R is true Both A and R are true and R is correct explanation of A A is true but R is false Both A and R are true but R is not a correct explanation of A A is false but R is true ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS