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 In arbitrary direction Antiparallel to magnetic field In the direction of current Normal to both current and magnetic field In arbitrary direction Antiparallel to magnetic field In the direction of current 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 forbidden energy gap between the valence band and conduction band will be least in case of Insulators Semiconductors Metals All of these Insulators Semiconductors Metals All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which of the following has highest resistivity? Mica Mineral oil Air Paraffin wax Mica Mineral oil Air Paraffin wax ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a bipolar transistor, the emitter base junction has Zero bias Reverse bias Zero or reverse bias Forward bias Zero bias Reverse bias Zero or reverse bias Forward bias ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a semiconductor diode, the barrier offers opposition to 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 Holes in P-region only Majority as well as minority carriers in both regions Majority carriers in both regions ANSWER DOWNLOAD EXAMIANS APP
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