Electronic Devices and Circuits The forbidden energy gap between the valence band and conduction band will be least in case of Semiconductors Metals All of these Insulators Semiconductors Metals All of these Insulators ANSWER DOWNLOAD EXAMIANS APP
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 arbitrary direction Normal to both current and magnetic field In the direction of current Antiparallel to magnetic field In arbitrary direction Normal to both current and magnetic field In the direction of current ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Piezoelectric quartz crystal resonators find application where Signal amplification is required Modulation of signal is required Signal frequency control is required Rectification of the signal is required Signal amplification is required Modulation of signal is required Signal frequency control is required Rectification of the signal is required 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 true but R is false 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 false but R is true A is true but R is false 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 false but R is true ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Silicon is not suitable for fabrication of light emitting diodes because it is Wideband gap semiconductor Narrowband gap semiconductor Direct band gap semiconductor An indirect band gap semiconductor Wideband gap semiconductor Narrowband gap semiconductor Direct band gap semiconductor An indirect band gap semiconductor ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which one of the following is not a characteristic of a ferroelectric material? Electric dipole moment Ferroelectric characteristic only above the curie point No hysteresis High dielectric constant Electric dipole moment Ferroelectric characteristic only above the curie point No hysteresis High dielectric constant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS