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Elex002 Quiz 1

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

The biasing of a transistor is purely a _____ operation

a)

AC

b)

DC

c)

AC/DC

d)

Q-point

2.

The purpose of biasing is to establish a ______

a)

amplification

b)

power source

c)

load line

d)

Q-point

3.

If the output signal swings equally above and below the DC bias level of the output, it is called _________

a)

linear operation

b)

Class B amplifier

c)

Class C amplifier

d)

Cass A amplifier

4.

___________refers to the use of signals that take up relatively small percentage of an amplifier’s operational range

a)

small signal

b)

signal processing

c)

large signal

d)

amplifier signal

5.

An electronic circuit having the capability to amplify power, voltage or current

a)

transformer

b)

attenuator

c)

amplifier

d)

transistor

6.

________ is the linking of two circuits or devices. It can be capacitive, inductive, resistive or direct

a)

cascading

b)

transformer

c)

transistor

d)

coupling

7.

A ___________ always produces a phase inversion between the base voltage and

a)

transistor

b)

common-emitter

c)

anplifier

d)

IC

8.

As the sinusoidal collector current increases, the collector voltage __________.

a)

stops

b)

increases

c)

decreases

d)

renains the same

9.

A transistor always produces a ____________ between the base voltage and the collector voltage in the common-emitter configuration

a)

face inversion

b)

direct link

c)

phase inversion

d)

signal conversion

10.

The key to transistor small-signal analysis is the use of the equivalent circuits or __________.

o

a)

source analysis

b)

models

c)

amplifier

d)

attenuator

11.

The ___________of a BJT transistor amplifier is purely resistive in nature

a)

input impedance

b)

output signal

c)

anplifier

d)

output impedance

12.

____________is determined at the output terminals looking back into the system with the applied signal set to zero.

a)

amplification

b)

output impedance

c)

balance umpedance

d)

output impedance

13.

The output impedance of a BJT transistor amplifier is __________ in nature.

a)

resistive

b)

capacitive

c)

inductive

d)

wireless

14.

•One of the most important characteristics of an amplifier is the small-signal AC _______ gain.:

a)

current

b)

power

c)

voltage

d)

weight

15.

For BJT amplifiers, the __________ gain typically ranges from level just less than 1 to a level that may exceed 100

a)

power

b)

voltage

c)

current

d)

bar

16.

in ____________ configuration input impedance is relatively small and the output impedance quite high.

a)

common-emitter

b)

common-collector

c)

common-base

d)

common sense

17.

What is the voltage gain of the given circuit? Beta = 100

a)

5

b)

10

c)

15

d)

20

18.

What is Zin of the given CE amplifier? Beta = 100

a)

470 Ohms

b)

4700 Ohms

c)

47 KOhms

d)

47 Ohms

19.

What is the Zout of the CE amplifier? Beta = 100

a)

470 Ohms

b)

4700 Ohms

c)

47 KOhms

d)

470 KOhms

20.

What is the collector current of the CE amplifier? Beta = 100

a)

1.6 A

b)

2.2 mA

c)

22 mA

d)

1.6 mA