Reference no: EM131073967

1. The two basic kinds of transistor circuits are amplifying and switching.
True
False

QUESTION 2

1. The bridge rectifier is similar to a full-wave rectifier .because it produces a full-wave output voltage.
True

False

QUESTION 3

1. A semiconductor is an element with electrical properties between those of a conductor and those of an insulator.

True
False

QUESTION 4

1. The dc beta is defined as the dc collector current divided by the dc emitter current.
True
False

QUESTION 5
1. An ideal diode acts like a switch that closes when forward-biased and opens when reverse-biased.
True
False

QUESTION 6
1. With a half-wave rectifier, the output frequency equals the input frequency.
True
False

QUESTION 7
1. A pure semiconductor is also referred to as:

a clean room device

intrinsic

extrinsic

transistor

QUESTION 8
1. Silicon that has been doped with a trivalent impurity is called a:

N-type semiconductor

P-type semiconductor

P-N junction

covalent bond

QUESTION 9
1. In a silicon atom, what is the distance between the valence band and the conduction band called?

energy gap

depletion layer

P-N junction

intrinsic

QUESTION 10
1. A diode is a nonlinear device because the graph of its current versus voltage is:

a straight line

not a straight line

inversely proportional to the resistance

exponential

QUESTION 11
1. Ideally, a diode acts like a perfect conductor when forward-biased and:

like a perfect conductor when reverse-biased

like a perfect semiconductor when reverse-biased

like a perfect insulator when reverse-biased

like a perfect diode when reverse-biased

QUESTION 12
1. A diode that exhibits high resistance in both directions when measured with an ohmmeter is:

shorted

leaky

open

a properly operating diode

QUESTION 13
1. The knee voltage of a germanium diode is approximately ________.

0.7 V

0.3 V

1.7 V

1.3 V

QUESTION 14
1. Much of the information on a manufacturer's data sheet is:

necessary to understand diode circuits

necessary to troubleshoot diode circuits

obscure and of use only to circuit designers

necessary only to electronics technicians

QUESTION 15
1. The output frequency of a half-wave rectifier is:

twice the input frequency

half the input frequency

equal to the input frequency

four times the input frequency

QUESTION 16
1. A step-up transformer will produce a secondary voltage that is:

smaller than the primary

equal to the primary

larger than the primary

rectified.

Figure 1

half-wave rectifier

full-wave rectifier

bridge rectifier

voltage doubler

1. Which region of the transistor is physically the largest?

collector

emitter

base

beta

QUESTION 19

1. Kirchhoff's current law describes transistor currents as follows:

emitter current equals the sum of collector and base currents.

collector current equals the sum of base and emitter currents.

base current equals the sum of collector and emitter currents.

emitter current equals collector current minus the base current.

20.) figure 2

Refer to Figure 2 below, what is the possible problem if VB is equal to 0 V and VC is equal to 15 V?

transistor is shorted

RB is open

VCC is 0 V

transistor is blown open

21.) Refer to Figure 2, what is the possible problem if VB is equal to 15 V and VC is equal to 15 V?

figure 2

transistor is blown open

VBB is 0 V

transistor is shorted

VCC is 0 V

22.)Using the load line shown in Figure 3, what is the transistor's collector current if biased at the point labelled Q?Figure 3

1.5 mA

3 mA

4.5 mA

7 mA

In the Common Collector (CC) circuit of Figure 5 below consider β = 49 and VBE = 0.7 V. Find the following:

A. IB
B. IE
C. VCE
D. VE
E. VB