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 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits When avalanche breakdown occurs covalent bonds are not affected. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits An electron in the conduction band Has lower energy than the electron in the valence band Has higher energy than the electron in the valence band Loses its charge easily Jumps to the top of the crystal Has lower energy than the electron in the valence band Has higher energy than the electron in the valence band Loses its charge easily Jumps to the top of the crystal ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits For a NPN bipolar transistor, what is the main stream of current in the base region? Diffusion of electrons Drift of electrons Diffusion of holes Drift of holes Diffusion of electrons Drift of electrons Diffusion of holes Drift of holes ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The sensitivity of human eyes is maximum at White portion of spectrum Red portion of spectrum Violet portion of spectrum Green portion of spectrum White portion of spectrum Red portion of spectrum Violet portion of spectrum Green portion of spectrum ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Assertion (A): A VMOS can handle much larger current than other field effect transistors.Reason (R): In a VMOS the conducting channel is very narrow. Both A and R are true but R is not a correct explanation of A Both A and R are true and R is correct explanation of A A is true but R is false A is false but R is true Both A and R are true but R is not a correct explanation of A Both A and R are true and R is correct explanation of A A is true but R is false A is false but R is true ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS