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 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 Antiparallel to magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Assertion (A): A p-n junction has high resistance in reverse direction.Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases. A is false but R is true Both A and R are true and R is correct explanation of A A is true but R is false Both A and R are true but R is not a correct explanation of A A is false but R is true Both A and R are true and R is correct explanation of A A is true but R is false Both A and R are true but R is not a correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits If too large current passes through the diode Diode will emit light All electrons will leave Excessive heat may damage the diode All holes will freeze Diode will emit light All electrons will leave Excessive heat may damage the diode All holes will freeze ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Light dependent resistors are Lightly doped semiconductor Either A or B Highly doped semiconductor Intrinsic semiconductor Lightly doped semiconductor Either A or B Highly doped semiconductor Intrinsic semiconductor 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 Diffusion of holes Drift of electrons Drift of holes Diffusion of electrons Diffusion of holes Drift of electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Assertion (A): In p-n-p transistor collector current is termed negative.Reason (R): In p-n-p transistor holes are majority carriers. Both A and R are true but R is not a correct explanation of A A is true but R is false A is false but R is true Both A and R are true and R is correct explanation of A Both A and R are true but R is not a correct explanation of A A is true but R is false A is false but R is true Both A and R are true and R is correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
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