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# GATE EC 2020: Analog Quiz 5

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Question 1

In the circuit shown below, assume that the voltage drop across a forward biased diode is 0.7 V. The thermal voltage V1 = kT/q = 25 mV. The small signal input Vi = Vp cos(ωt) where Vp = 100 mV. The bias current IDC through the diodes is

Question 2

The ac output voltage vac is

Question 3

The diode in the circuit given below has VON = 0.7 V but is ideal otherwise. The current (in mA) in the 4kΩ resistor is______ mA Question 4

The diode in the circuit shown has Von = 0.7 Volts but is ideal otherwise. If Vi = 5sin Volts, the minimum and maximum values of VO (in Volts) are, respectively,

Question 5

In the figure shown below, the output waveform of the circuit can be represented as

Question 6

In the figure shown below, all the diodes are ideal. The value of current I is ________mA.
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