Video Solutions for GATE 2013 Electronics & Communications (EC) - Electronic Devices - One Mark Questions

GATE  2013 (EC) - Electronic Devices

ONE  MARK  Questions 

1. In IC Technology, Dry oxidation ( using Dry oxidation ) as compared to Wet oxidation ( using stream or water vapor ) produces ……………..
1. superior quality oxide with a higher growth rate
2. inferior quality oxide with a higher growth rate
3. inferior quality oxide with a lower growth rate
4. superior quality oxide with a lower growth rate

Answer : D    

                                                                                           

2. In a Forward Biased PN junction diode, the sequence of events that best describes the mechanism of current flow is
1. Injection and subsequent diffusion and recombination of minority carriers
2. Injection and subsequent drift and generation of minority carriers
3. Extraction and subsequent diffusion and generation of minority carriers
4. Extraction and subsequent drift and recombination of minority carriers

Answer : A

                                      

3. In a MOSFET operating in saturation region, the channel length modulation effect causes,
1. an increase in gate source capacitance
2. a decrease in transconductance
3. a decrease in unity gain bandwidth product
4. a decrease in output resistance      

 Answer : D