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. GATE ECE 2016 Set 2 Analog Circuits - Bipolar Junction Transistor Question 48 English

The value of R2 (in $$\Omega $$ ) for which I2 = 100 $$\mu {\rm A}$$ is ________.

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2
GATE ECE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following statements is correct about an ac-coupled common- emitter amplifier operating in the mid-band region?
A
The device parasitic capacitances behave like open circuits, whereas coupling and bypass capacitances behave like short circuits.
B
The device parasitic capacitances, coupling capacitances and bypass capacitances behave like open circuits.
C
The device parasitic capacitances, coupling capacitances and bypass capacitances behave like short circuits.
D
The device parasitic capacitances behave like short circuits, whereas coupling and bypass capacitances behave like open circuits.
3
GATE ECE 2016 Set 2
Numerical
+2
-0
In the opamp circuit shown, the Zener diodes Z1 and Z2 clamp the output voltage Vo to +5 V or -5 V. The switch S is intially closed and is opened at time t = 0 GATE ECE 2016 Set 2 Analog Circuits - Operational Amplifier Question 14 English

The time t = t1 (in seconds) at which Vo changes state is _____.

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4
GATE ECE 2016 Set 2
Numerical
+2
-0
An opamp has a finite open loop voltage gain of 100. Its input offset voltage Vios (= +5mV) is modeled as shown in the circuit below. The amplifier is ideal in all other respects. Vinput is 25 mV. GATE ECE 2016 Set 2 Analog Circuits - Operational Amplifier Question 13 English

The output voltage (in millivolts) is ________.

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