Electronic Devices and Circuits Silicon is not suitable for fabrication of light emitting diodes because it is Wideband gap semiconductor Direct band gap semiconductor Narrowband gap semiconductor An indirect band gap semiconductor Wideband gap semiconductor Direct band gap semiconductor Narrowband gap semiconductor An indirect band gap semiconductor 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 Normal to both current and magnetic field In the direction of current In arbitrary direction Antiparallel to magnetic field Normal to both current and magnetic field In the direction of current In arbitrary direction ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits The amount of photoelectric emission current depends on None of these Intensity of incident radiation Both frequency and intensity of incident radiation Frequency of incident radiation None of these Intensity of incident radiation Both frequency and intensity of incident radiation Frequency of incident radiation ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which variety of copper has the best conductivity? Hard drawn copper Pure annealed copper Induction hardened copper Copper containing traces of silicon Hard drawn copper Pure annealed copper Induction hardened copper Copper containing traces of silicon ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is 1.01 100 99 0.99 1.01 100 99 0.99 ANSWER DOWNLOAD EXAMIANS APP
Electronic Devices and Circuits Which of the following has highest resistivity? Mica Paraffin wax Air Mineral oil Mica Paraffin wax Air Mineral oil ANSWER DOWNLOAD EXAMIANS APP
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