ATT Week 7 Exam 2025 Questions and
Answers
What is the purpose of multivibrators? - ANS Changes DC operating voltage to sqaure waves.
What are multivibrators made of? - ANS 2 transistors and a feedback circuit
Free running Multivibrators generate a square wave output.... - ANS Anytime the operating
voltage is applied.
Triggered multivibrators produce a square wave... - ANS When an external input is applied.
The type of multivibrator circuit depends on... - ANS The feedback circuit components
An astable multivibrator has no... - ANS Stable state condition, it is free running
A monostable multivibrator has... - ANS One stable state, it is triggered
A bistable multivibrator has... - ANS Two stable states, it is triggered
A stable state is... - ANS A steady condition(output stays the same)
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, What happens when power is applied in an Astable Multivibrator? - ANS Q1 and Q2 switch
between on or off.
What happens to Q1 and Q2 in a monostable multivibrator? - ANS Q2 is on, Input pulse
causes Q2 to turn off and Q1 to turn on
A transistor in a multivibrator is on in ____________ - ANS Saturation
A transistor in a multivibrator is off in __________ - ANS Cutoff
What happens to Q1 and Q2 in a bistable multivibrator? - ANS Either Q1 or Q2 could be on,
input pulse causes either to turn off and the other to turn on.
How is an Astable multivibrator identified? - ANS Two capacitors in the feedback circuit.
How is a monostable multivibrator identified? - ANS One capacitor and one resistor in the
feedback circuit.
How is a bistable multivibrator identified? - ANS Two capacitors and two resistors in
feedback circuit.
What is the purpose of R1 in an Astable Multivibrator Circuit? - ANS Collector Load Resistor
What is the purpose of R3 in an Astable Multivibrator Circuit? - ANS Base bias resistor for Q1
What is the purpose of R2 in an Astable Multivibrator Circuit? - ANS Base bias resistor for Q2
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
Answers
What is the purpose of multivibrators? - ANS Changes DC operating voltage to sqaure waves.
What are multivibrators made of? - ANS 2 transistors and a feedback circuit
Free running Multivibrators generate a square wave output.... - ANS Anytime the operating
voltage is applied.
Triggered multivibrators produce a square wave... - ANS When an external input is applied.
The type of multivibrator circuit depends on... - ANS The feedback circuit components
An astable multivibrator has no... - ANS Stable state condition, it is free running
A monostable multivibrator has... - ANS One stable state, it is triggered
A bistable multivibrator has... - ANS Two stable states, it is triggered
A stable state is... - ANS A steady condition(output stays the same)
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, What happens when power is applied in an Astable Multivibrator? - ANS Q1 and Q2 switch
between on or off.
What happens to Q1 and Q2 in a monostable multivibrator? - ANS Q2 is on, Input pulse
causes Q2 to turn off and Q1 to turn on
A transistor in a multivibrator is on in ____________ - ANS Saturation
A transistor in a multivibrator is off in __________ - ANS Cutoff
What happens to Q1 and Q2 in a bistable multivibrator? - ANS Either Q1 or Q2 could be on,
input pulse causes either to turn off and the other to turn on.
How is an Astable multivibrator identified? - ANS Two capacitors in the feedback circuit.
How is a monostable multivibrator identified? - ANS One capacitor and one resistor in the
feedback circuit.
How is a bistable multivibrator identified? - ANS Two capacitors and two resistors in
feedback circuit.
What is the purpose of R1 in an Astable Multivibrator Circuit? - ANS Collector Load Resistor
What is the purpose of R3 in an Astable Multivibrator Circuit? - ANS Base bias resistor for Q1
What is the purpose of R2 in an Astable Multivibrator Circuit? - ANS Base bias resistor for Q2
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
