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GATE EE 2018 Exam: Analog Circuits Quiz 2

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Question 1

In the given circuit, the silicon transistor has β = 75 and a collector voltage V_C = 9V. Then the ratio of R_B and R_C is ________.

Question 2

What are the states of the three ideal diodes of the circuit shown in figure?

Question 3

The common emitter forward current gain of the transistor shown is

The transistor is operating in

Question 4

The three-terminal linear voltage regulator is connected to a

load resistor as shown in figure. If V_in is 10V, what is the power dissipated in the transistor?

Question 5

Figure shows a composite switch consisting of a power transistor (BJT) in series with a diode. Assuming that the transistor switch and the diode are ideal, the I-V characteristic of the composite switch is

Question 6

In the voltage doubler circuit shown in the figure, the switch ‘S’ is closed at t = 0. Assuming diodes D₁ and D₂ to be ideal, load resistance to be infinite and initial capacitor voltages to be zero, the steady state voltage across capacitors C₁ and C₂ will be

Question 7

If and X₂ are the inputs to the circuit shown in the following figure, the output Q is:

Question 8

In the circuit shown below, the knee current of the ideal Zener diode is 10 mA. To maintain 5 V across RL, the minimum value of R_L in

and the minimum power rating of the Zener diode in mW respectively are

Question 9

A clipper circuit is shown below.

Assume forward voltage drops of the diodes to be 0.7 Volt, the input- output characteristics of the circuit is

Question 10

A MOSFET rated for 15 A, carries a periodic current as shown in figure. The ON state resistance of the MOSFET is 0.15Ω. The average ON state loss in the MOSFET is

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ESE & GATE EE Analog Electronics

Jun 20ESE & GATE EE