13633924
Descrição
Quiz por Katrina Himes, atualizado more than 1 year ago
|
Criado por Katrina Himes
mais de 6 anos atrás
|
|
Questão 1
Questão
A real voltage source has
Responda
-
Zero internal resistance
-
Infinite internal resistance
-
A small internal resistance
-
A large internal resistance
Questão 2
Questão
If a load resistance is 100 Ω, a stiff voltage source has a resistance of
Responda
-
Less than 1 Ω
-
At least 10 Ω
-
More than 10 kΩ
-
Less than 10 kΩ
Questão 3
Questão
The Thevenin voltage is the same as the
Responda
-
Shorted-load voltage
-
Open-load voltage
-
Ideal source voltage
-
Norton voltage
Questão 4
Questão
An open resistor has
Responda
-
Infinite current through it
-
Zero voltage across it
-
Infinite voltage across it
-
Zero current through it
Questão 5
Questão
A shorted resistor has
Responda
-
Infinite current through it
-
Zero voltage across it
-
Infinite voltage across it
-
Zero current through it
Questão 6
Questão
The voltage out of an ideal voltage source
Responda
-
Is zero
-
Is constant
-
Depends on the value of load resistance
-
Depends on the internal resistance
Questão 7
Questão
Assume the valence electron is removed from a copper atom. The net charge of the atom becomes
Responda
-
0
-
+1
-
-1
-
+4
Questão 8
Questão
Which is the most widely used semiconductor?
Responda
-
Copper
-
Germanium
-
Silicon
-
None of the above
Questão 9
Questão
Silicon atoms combine into an orderly pattern called a
Responda
-
Covalent bond
-
Crystal
-
Semiconductor
-
Valence orbit
Questão 10
Questão
The flow of valence electrons to the right means that holes are flowing to the
Responda
-
Left
-
Right
-
Either way
-
None of the above
Questão 11
Questão
Trivalent atoms have how many valence electrons?
Responda
-
1
-
3
-
4
-
5
Questão 12
Questão
Negative ions are atoms that have
Responda
-
Gained a proton
-
Lost a proton
-
Gained an electron
-
Lost an electron
Questão 13
Questão
What is the barrier potential of a silicon diode at room temperature?
Responda
-
0.3 V
-
0.7 V
-
1 V
-
2 mV per degree Celsius
Questão 14
Questão
The voltage where avalanche occurs is called the
Responda
-
Barrier potential
-
Depletion layer
-
Knee voltage
-
Breakdown voltage
Questão 15
Questão
When the diode current is large, the bias is
Responda
-
Forward
-
Inverse
-
Poor
-
Reverse
Questão 16
Questão
The knee voltage of a diode is approximately equal to the
Responda
-
Applied voltage
-
Barrier potential
-
Breakdown voltage
-
Forward voltage
Questão 17
Questão
The ideal diode is usually adequate when
Responda
-
Troubleshooting
-
Doing precise calculations
-
The source voltage is low
-
The load resistance is low
Questão 18
Questão
The second approximation works well when
Responda
-
Troubleshooting
-
Load resistance is high
-
Source voltage is high
-
All of the above
Questão 19
Questão
If the line frequency is 60 Hz, the output frequency of a bridge rectifier is
Responda
-
30 Hz
-
60 Hz
-
120 Hz
-
240 Hz
Questão 20
Questão
With the same secondary voltage and filter, which has the most ripple?
Responda
-
Half-wave rectifier
-
Full-wave rectifier
-
Bridge rectifier
-
Impossible to say
Questão 21
Questão
If the secondary voltage increases in a bridge rectifier with a capacitor-input filter, the load voltage will
Responda
-
Decrease
-
Stay the same
-
Increase
-
None of these
Questão 22
Questão
If the filter capacitance is increased, the ripple will
Responda
-
Decrease
-
Stay the same
-
Increase
-
None of these
Questão 23
Questão
A circuit that removes positive or negative parts of a waveform is called a
Responda
-
Clamper
-
Clipper
-
Diode clamp
-
Limiter
Questão 24
Questão
With a half-wave rectified voltage across the load resistor load current flows for what part of a cycle?
Responda
-
0°
-
90°
-
180°
-
360°
Questão 25
Questão
A circuit that adds a positive or negative dc voltage to an input sine wave is called a
Responda
-
Clamper
-
Clipper
-
Diode clamp
-
Limiter
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.