1
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
A Silicon PN junction at a temperature of 20°C has a reverse saturation current of 10 pico-Amperes (pA). The reverse saturation current at 40°C for the same bias is approximately
A
20 pA
B
30 pA
C
40 pA
D
80 pA
2
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
The band gap of Silicon at room temperature is:
A
1.3 eV
B
0.7 eV
C
1.1 eV
D
1.4 eV
3
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
A silicon sample 'A' is doped with 1018 atoms/cm3 of Boron. Another sample 'B' of identical dimensions is doped with 1018 atoms/cm3 of Phosphorus. The ratio of electron to hole mobility is 1/3. The ratio of conductivity of the sample A to B is
A
3
B
1/3
C
2/3
D
3/2
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
The Zener diode in the regulator circuit shown in figure has a Zener voltage of 5.8 Volts and a Zener knee current of 0.5 mA. The maximum load current drawn from this circuit ensuring proper functioning over the input voltage range between 20 and 30 Volts, is GATE ECE 2005 Electronic Devices and VLSI - PN Junction Question 12 English
A
23.7 mA
B
14.2 mA
C
13.7 mA
D
24.2 mA
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12