Theory_Questions:
1.
Which of the following statement(s) is (are) false?
(a)
op-amp is an integrated circuit
(b)
Active elements can be used as feedback element, if the application
is non-linear
(c)
op-amp in open-loop mode is a comparator
(A)
only (a)
(B)
only (b)
(C)
only (c)
(D)
both (a) and (b)
(E)
both (b) and (c)
(F)
None
Answer:[F]
None
2.
Which of the following stages is not a part of an op-amp?
(A)
Cascaded differential amplifiers
(B)
Level shifter
(C)
Power amplifier
(D)
Logarithmic amplifier
Answer: [D]
3. The voltage across Zener diode in
forward biased condition
a. Zener diode should not be used in
forward biased condition
b. Break-down voltage
c. cut-in voltage
d. equal to the applied input voltage
Answer: [C] cut-in voltage
4. If we short circuit a practical
diode (0.7V cut-in voltage) using a metallic wire what will be the
current?
a. Infinite
b. 0.7/(resistance of metallic wire) A
c. 0.7 A
d. Zero
Answer: [D] Zero
5. The ideal diode are characterized by
a) i= 0 for v > 0, i = 0 for v <
0 where v is input supply given to diode resistor series combination,
i is
current through diode.
b) i > 0 for v=0, i = 0 for v < 0
where v is voltage across diode resistor series combination, i is
current through diode.
c) i=0 for v=0.7 V, i < 0 for v = 0
where v is voltage across diode resistor series combination, i is
current through diode.
d) None.
Answer: [B] i > 0 for v=0, i = 0 for
v < 0 where v is voltage across diode resistor series combination,
i is
current through diode.
6.
Assertion (A): Diode is a non- linear
device
Reason (R): Diode is a unilateral
device.
a) Both A & R are correct, but R is
not correct explanation for A.
b) Both A & R are correct, and R is
the correct explanation for A.
c) Both A & R are incorrect.
d) A is correct but R is incorrect.
Answer:
[B] Both A & R are correct, and R is the correct explanation for
A.
7.
The voltage across Zener diode in forward biased condition
a.
Zener diode should not be used in forward biased condition
b.
Break-down voltage
c.
cut-in voltage
d.
equal to the applied input voltage
Answer:
[C] cut-in voltage
8. To
use an op-amp, we need at least
(A)
One supply voltage
(B)
Two supply voltages
(C)
One coupling capacitor
(D)
One bypass capacitor
Answer:
[A] One supply voltage
9. In
a linear op-amp circuits, the
(A)
Signals are always sine waves
(B)
Op-amp does not go into the saturation
(C)
Input impedance is ideally infinite
(D)
Gain-bandwidth product is constant
Answer:
[B] Op-amp does not go into the saturation
10.
Which of the following are true for instrumentation amplifier?
(a)
Large voltage gain (b) a high CMRR (c) low input offset (d) high
input impedance
(A)
(a), (c), (d) are correct
(B)
(a), (b), (d) are correct
(C)
All are correct
(D)
None of the above
Answer:
[C] All are correct
Analog Electronic Circuits Laboratory Viva Questions 1
Analog Electronic Circuits Laboratory Viva Questions 2
Analog Electronic Circuits Laboratory Viva Questions 3
Analog Electronic Circuits Laboratory Viva Questions 4
Analog Electronic Circuits Laboratory Viva Questions 5
Analog Electronic Circuits Laboratory Viva Questions 6
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