Electronics unit 5 IU ONLINE Test Questions and Answers Already Passed Latest Update 2025
-2026
Electrons in a vacuum tube flow ____________. - Answersfrom cathode to anode
The control grid in a triode vacuum tube ________. - Answerscontrols the flow of electrons by its
voltage potential
If current is flowing through a triode and the control grid is made more positive, ________. -
Answerscurrent flow would increase
If current is flowing through a triode and the cathode is made more negative, _________. -
Answerscurrent flow would increase
What gives off electrons in a vacuum tube? - Answerscathode
The anode in a diode should have a more _______ charge - Answerspositive
When the Anode is more positive than the cathode or the cathode is more negative than the
anode it is said that the tube is correctly ______. - Answersbiased
The waveform shown is the result of a circuit called a - Answershalf wave rectifier
The waveform shown would be the result of AC going through a circuit called a - Answersfull
wave rectifier
There are two anodes in a full wave rectifier tube. Current is flowing through each anode for
_____ of the waveform. - Answershalf
When using a full wave rectifier as a positive DC source, the circuit (load) is connected to the
_______. - Answerscathode
If the anode and cathode are correctly charged and the control grid is made more negative,
current flow through the tube will _______. - Answersdecrease
What would make the current flow through a triode increase? - AnswersMaking the control grid
more positive.
The capacitor (from anode to output) in a common cathode amplifier circuit is there to block
_____ from getting to the output. - AnswersDC
If it is not possible to make current flow through a tube increase any more, the tube is said to be
in ______. - Answerssaturation
If current at cutoff for a tube in single triode audio amplifier is 0mA and saturation is 200mA,
how much current (in mA) should be flowing when there is 0V on the control grid? (assume this
is a "good" amplifier. - Answers100
-2026
Electrons in a vacuum tube flow ____________. - Answersfrom cathode to anode
The control grid in a triode vacuum tube ________. - Answerscontrols the flow of electrons by its
voltage potential
If current is flowing through a triode and the control grid is made more positive, ________. -
Answerscurrent flow would increase
If current is flowing through a triode and the cathode is made more negative, _________. -
Answerscurrent flow would increase
What gives off electrons in a vacuum tube? - Answerscathode
The anode in a diode should have a more _______ charge - Answerspositive
When the Anode is more positive than the cathode or the cathode is more negative than the
anode it is said that the tube is correctly ______. - Answersbiased
The waveform shown is the result of a circuit called a - Answershalf wave rectifier
The waveform shown would be the result of AC going through a circuit called a - Answersfull
wave rectifier
There are two anodes in a full wave rectifier tube. Current is flowing through each anode for
_____ of the waveform. - Answershalf
When using a full wave rectifier as a positive DC source, the circuit (load) is connected to the
_______. - Answerscathode
If the anode and cathode are correctly charged and the control grid is made more negative,
current flow through the tube will _______. - Answersdecrease
What would make the current flow through a triode increase? - AnswersMaking the control grid
more positive.
The capacitor (from anode to output) in a common cathode amplifier circuit is there to block
_____ from getting to the output. - AnswersDC
If it is not possible to make current flow through a tube increase any more, the tube is said to be
in ______. - Answerssaturation
If current at cutoff for a tube in single triode audio amplifier is 0mA and saturation is 200mA,
how much current (in mA) should be flowing when there is 0V on the control grid? (assume this
is a "good" amplifier. - Answers100
