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 Normal to both current and magnetic field Antiparallel to magnetic field In the direction of current In arbitrary direction Normal to both current and magnetic field Antiparallel to magnetic field In the direction of current In arbitrary direction ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The sensitivity of human eyes is maximum at Red portion of spectrum Violet portion of spectrum White portion of spectrum Green portion of spectrum Red portion of spectrum Violet portion of spectrum White portion of spectrum Green portion of spectrum ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The depletion layer width of Junction Is independent of applied voltage Decreases with light doping Is increased under reverse bias Increases with heavy doping Is independent of applied voltage Decreases with light doping Is increased under reverse bias Increases with heavy doping ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a bipolar transistor, the base collector junction has Reverse bias Zero or forward bias Forward bias Zero bias Reverse bias Zero or forward bias Forward bias Zero bias ANSWER DOWNLOAD EXAMIANS APP
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 An electron in the conduction band 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 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 ANSWER DOWNLOAD EXAMIANS APP
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