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AE-JE Foundation EE : Analog Electronics Quiz 2

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Question 1

Which of the following is a FALSE statement considering common collector amplifier?

Question 2

The pinch off voltage for a n-channel JFET is 4 V, when V_GS = 1V, the pinch-off occurs at V_DS equal to:

Question 3

Read the below statement and choose the correct option:

Statement 1: Class C amplifier has highest conversion efficiency.

Statement 2: Class A amplifier can have maximum efficiency of 25%.

Question 4

Biasing is used in transistor amplifiers to
1) Stabilize the operating point against temperature variations.
2) Place the operating point in the linear region of the characteristics.
3) Make α, β, and I_CO of the transistor independent of temperature variations.
4) Reduce distortion and increases dynamic range.

Question 5

Upper 3 dB cut-off of common emitter amplifier depends on.

Question 6

An amplifier has a signal input voltage V_i of 0.25 V and draws 1 mA from the source. If the amplifier delivers 8 V to a load of 10 mA, the power gain is

Question 7

Which of the following regions of operation are mainly responsible for heating of the transistor under switching operation?
1) Saturation region
2) Cut-off region
3) Transition from saturation to cut-off
4) Transition from cut-off to saturation
Select the correct answer using the codes given below

Question 8

What is the main advantage of a JFET-cascade amplifier?

Question 9

In an amplifier, if voltage shunt negative feedback is employed, then

Question 10

A common emitter amplifier is characterized by

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