Electronic Devices and Circuits Silicon is not suitable for fabrication of light emitting diodes because it is Direct band gap semiconductor Wideband gap semiconductor Narrowband gap semiconductor An indirect band gap semiconductor Direct band gap semiconductor Wideband gap semiconductor Narrowband gap semiconductor An indirect band gap semiconductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The most commonly used semiconductor material is None of these Mixture of silicon and germanium Germanium Silicon None of these Mixture of silicon and germanium Germanium Silicon ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In monolithic ICs, all the components are fabricated by Diffusion process Oxidation None Evaporation Diffusion process Oxidation None Evaporation ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The sensitivity of human eyes is maximum at White portion of spectrum Violet portion of spectrum Red portion of spectrum Green portion of spectrum White portion of spectrum Violet portion of spectrum Red portion of spectrum Green portion of spectrum 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 None of these An electron can have at room temperature A hole can have at room temperature Must be given to an electron move to conduction band None of these An electron can have at room temperature A hole can have at room temperature 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 Loses its charge easily Jumps to the top of the crystal Has higher energy than the electron in the valence band Has lower energy than the electron in the valence band Loses its charge easily Jumps to the top of the crystal ANSWER DOWNLOAD EXAMIANS APP
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