1
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
The 6 V Zener diode shown in figure has zero Zener resistance and a knee current of 5 mA. The minimum value of R, so that the voltage across it does not fall below 6 V is: GATE ECE 1992 Electronic Devices and VLSI - PN Junction Question 17 English
A
1.2 kΩ
B
50 Ω
C
80 Ω
D
0 Ω
2
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
An n-channel JFET has a pinch-off voltage VP = -5 V, VDS(max) = 20 V and gm = 2 mA/V. The minimum ‘ON’ resistance is achieved in the JEFT for
A
VGS = - 7 V and VDS = 0 V
B
VGS = 0 V and VDS = 0 V
C
VGS = 0 V and VDS = 20 V
D
VGS = - 7 V and VDS = 20 V
3
GATE ECE 1992
Fill in the Blanks
+2
-0
In a transistor having finite B, the forward bias across the base emitter junction is kept constant and the reverse bias across the collector base junction is increased. Neglecting the leakage across the collector base junction and the depletion region generating current, the base current will __________. (increase/decrease/remain constant).
4
GATE ECE 1992
Fill in the Blanks
+1
-0
The following program is run on 8085 microprocessor: GATE ECE 1992 Microprocessors - Instruction Set and Programming with 8085 Question 28 English At the completion of execution of the program, the program Counter of the 8085 contains ________ and the Stack Pointer contains ________.
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