1
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown below, the knee current of the ideal Zener diode is 10 mA. To maintain 5V across RL, the minimum value of RL in Ω and the minimum power rating of the Zener diode in mW, respectively, are GATE ECE 2013 Electronic Devices and VLSI - PN Junction Question 8 English
A
125 and 125
B
125 and 250
C
250 and 125
D
250 and 250
2
GATE ECE 2009
MCQ (Single Correct Answer)
+2
-0.6
In the circuit below, the diode is ideal. The voltage V is given by GATE ECE 2009 Electronic Devices and VLSI - PN Junction Question 9 English
A
Min (Vi, 1)
B
Max (Vi, 1)
C
Min (-Vi, 1)
D
Max (-Vi, 1)
3
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
A P+-N junction has a built-in potential of 0.8 V. The depletion layer width at a reverse bias of 1.2V is 2 µm. For a reverse bias of 7.2 V, the depletion layer width will be:
A
4 µm
B
4.9 µm
C
8 µm
D
12 µm
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
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