1
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
The DC current gain ($$\beta$$) of a BJT is 50. Assuming that the emitter injection
efficiency is 0.995, the base transport factor is:
2
GATE ECE 1999
MCQ (Single Correct Answer)
+2
-0.6
An n-channel JEFT has IDSS = 2 mA and Vp = −4 V. It's transconductance gm (in
mA/V) for an applied gate-to-source voltage VGS of –2V is:
3
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
4
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).
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics