Multivibrators

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Bistable multivibrator is ________ in any state.
Stable
Unstable
Saturated
Independent
Explanation:
Bistable multivibrator is a type of multivibrator having two stable states. The circuit is stable in either state. It can be flipped from one state to the other by an external trigger pulse.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
Astable multivibrator is ________ in any state.
Stable
Unstable
Saturated
Both Stable & Saturated
Explanation:
Astable multivibrator, in which the circuit is not stable in either state i.e. it continually switches from one state to the other. It is internally triggered and does not have any stable state.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Astable circuit acts as a/an ____________
Amplifier
Oscillator
Relaxation oscillator
Multiplexer
Explanation:
Astable circuit continually switches from one state to the other. It keeps oscillating between unstable states. Hence, it functions as a relaxation oscillator.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Monostable multivibrator can also be termed as ____________
Full astable multivibrator
Half astable multivibrator
Half bistable multivibrator
Full bistable multivibrator
Explanation:
Since, astable multivibrator is unstable and changes their states continually (It means that it can have both the states), whereas in monostable multivibrator, one of the states is stable, but the other state is unstable. SO Monostable Multivibrator is also known as Half-Astable Multivibrator.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
How many types of multivibrators are?
2
4
5
3
Explanation:
There are three types of multivibrator circuits depending on the circuit operation: (i) Astable, (ii) Bistable, and (iii) Monostable. Astable multivibrator is internally triggered, whereas the other two types are externally triggered.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
A multivibrator is an electronic circuit used to implement ____________
Oscillator
Timer
Flip-flop
All of the Mentioned
Explanation:
A multivibrator is an electronic circuit used to implement a variety of simple two-state systems and two state systems are an oscillator, timer, flip-flop. It produces an output when triggered.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
In an astable multivibrator, the amplifying elements are ____________
FET
JFET
OP-AMP
All of the Mentioned
Explanation:
Astable multivibrators are made with FET, JFET, OP-AMP or other types of amplifier. Astable circuit continually switches from one state to the other. It keeps oscillating between unstable states.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Multivibrators are characterized by ____________
Registers
Capacitors
Transistors
All of the Mentioned
Explanation:
A multivibrator is an electronic circuit used to implement a variety of simple two-state systems and two state systems are an oscillator, timer, flip-flop. It produces an output when triggered. Multivibrators are characterized by amplifying devices (transistors) and cross coupled devices (registers, capacitors).
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Monostable multivibrator is/has ________ state.
Stable
Unstable
One stable and another unstable
Independent
Explanation:
Monostable multivibrator, in which one of the states is stable, but the other state is unstable (transient). A trigger pulse causes the circuit to enter the unstable state. After entering the unstable state, the circuit will return to the stable state after a set time.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Bistable circuit is also known as ____________
Latch
Gate
Flip-flop
Bidirectional circuit
Explanation:
Bistable multivibrator circuit has the capability to store 1-bit of information. So, it is also known as flip-flop. Like Flip-flop, Bistable circuit also has 2 states.