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