WorksheetsLIC First Unit
Total questions: 20
Worksheet time: 10mins
What is the Open Loop Gain of an IDEAL amplifier?
zero
1
1 000
a million
infinite open loop gain
What is the INPUT impedance of an IDEAL amplifier?
0 Ω
100 Ω
1 000 Ω
1 000 000 Ω
Infinite impedance
What is the voltage gain in a Voltage Follower circuit?
zero
+1
-1
infinity
Which one of these circuits is an Inverting Amplifier?
Which of these circuits is a Non-Inverting Amplifier?
What sort of amplifier is this?
Summing amplifier
Voltage follower
Inverting amplifier
Non-inverting amplifier
An ideal op-amp has
Infinite differential voltage gain
Infinite input resistance
Zero output resistance
All the above
The Op-amp can amplify:
only d.c. signals only
a.c. signals
both a.c. and d.c. signals
Neither d.c. nor a.c. signals
Identify the circuit
Inverting amplifier
voltage follower
Differential amplifier
Non inverting amplifier
A voltage follower
has a voltage gain of 1
is Non inverting
has no feedback resistor
has all of these
Which concept states that if one input terminal of an op-amp is at zero potential, then the other one also will be at zero potential?
Virtual short
Virtual ground
Zero input current
None of the above
The gain equation of inverting amplifier is
R1/Rf
Rf/R1
-Rf/R1
-R1/Rf
Identify the circuit
Inverting amplifier
voltage follower
Differential amplifier
Non inverting amplifier
What is the INPUT impedance of an IDEAL amplifier?
0 Ω
100 Ω
1 000 Ω
1 000 000 Ω
Infinite impedance
An op-amp is a __________________ voltage amplifier.
DC coupled
AC coupled
DC singled
AC singled
What is CMRR?
Common Mode Repeated Ratio
Common Mode Reverse Ratio
Common Mode Rejection Ratio
Right definition of CMRR is:
The ability of Opamp to reverse common mode signal
The ability of opamp to reject Common mode signals
The ability of opamp to regain common mode output
Which analysis of differential amplifier is performed by making DC voltages VCC and VEE = 0 ?
A.C. Analysis
D.C. Analysis
None of the above
Both in AC and DC analysis
The Op-amp can amplify
a.c. signals only
d.c. signals only
both a.c. and d.c. signals
neither d.c. nor a.c. signals
Ideal Bandwidth of op amp
Zero
10MHz
close to infinity
Infinite
