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 In a semiconductor diode, the barrier offers opposition to Holes in P-region only Majority carriers in both regions Free electrons in N-region only Majority as well as minority carriers in both regions Holes in P-region only Majority carriers in both regions Free electrons in N-region only Majority as well as minority carriers in both regions 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 Diffusion of electrons Drift of electrons Diffusion of holes Drift of holes Diffusion of electrons Drift of electrons Diffusion of holes ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Light dependent resistors are Either A or B Lightly doped semiconductor Highly doped semiconductor Intrinsic semiconductor Either A or B Lightly doped semiconductor Highly doped semiconductor Intrinsic semiconductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The output, V-I characteristics of an Enhancement type MOSFET has An ohmic region at large voltage values preceded by a saturation region at lower voltages Only a saturation region An ohmic region at low voltage value followed by a saturation region at higher voltages Only an ohmic region An ohmic region at large voltage values preceded by a saturation region at lower voltages Only a saturation region An ohmic region at low voltage value followed by a saturation region at higher voltages Only an ohmic region 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 Only those produced by doping Only those produced by thermal energy Any of the above Those produced by doping as well as thermal energy Only those produced by doping Only those produced by thermal energy Any of the above ANSWER DOWNLOAD EXAMIANS APP
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