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 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 Normal to both current and magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which one of the following is not a characteristic of a ferroelectric material? No hysteresis Ferroelectric characteristic only above the curie point High dielectric constant Electric dipole moment No hysteresis Ferroelectric characteristic only above the curie point High dielectric constant Electric dipole moment ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Fermi level is the amount of energy in which An electron can have at room temperature Must be given to an electron move to conduction band None of these A hole can have at room temperature An electron can have at room temperature Must be given to an electron move to conduction band None of these A hole can have at room temperature ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits For a NPN bipolar transistor, what is the main stream of current in the base region? Drift of holes Drift of electrons Diffusion of holes Diffusion of electrons Drift of holes Drift of electrons Diffusion of holes Diffusion of electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Forbidden energy gap in germanium at 0 K is about 10 eV 2 eV 5 eV 0.78 eV 10 eV 2 eV 5 eV 0.78 eV ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits In a bipolar transistor, the base collector junction has Zero or forward bias Reverse bias Zero bias Forward bias Zero or forward bias Reverse bias Zero bias Forward bias ANSWER DOWNLOAD EXAMIANS APP
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