1
GATE ECE 2016 Set 2
Numerical
+1
-0
Resistor R1 in the circuit below has been adjusted so that I1 = 1 mA. The bipolar transistor Q1 and Q2 are perfectly matched and have very high current gain, so their base currents are negligible. The supply voltage Vcc is 6 V. The thermal voltage kT/q is 26 mV. The value of R2 (in $$\Omega$$ ) for which I2 = 100 $$\mu {\rm A}$$ is ________.

2
GATE ECE 2016 Set 3
Numerical
+1
-0
Consider the circuit shown in the figure. Assuming VBE1 = VEB2 = 0.7 volt, value of the dc voltage Vc2 (in volt) is _______ 3
GATE ECE 2014 Set 4
+1
-0.3
If the emitter resistance in a common-emitter voltage amplifier is not bypassed, it will
A
reduce both the voltage gain and the input impedance
B
reduce the voltage gain and increase the input impedance
C
increase the voltage gain and reduce the input impedance
D
increase both the voltage gain and the input impedance
4
GATE ECE 2014 Set 3
Numerical
+1
-0
In the circuit shown, the PNP transistor has $$\left|{\mathrm V}_\mathrm{BE}\right|=0.7\;\mathrm V$$ and β = 50. Assume that RB = 100 kΩ. For V0 to be 5 V, the value of RC ( in kΩ) is _____________. GATE ECE Subjects
Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Communications
Electromagnetics
General Aptitude
Engineering Mathematics
EXAM MAP
Joint Entrance Examination