1) Input offset current is basically defined as the algebraic ______ the base current of two transistors.
a. sum of
b. difference between
c. product of
d. division of
|
Answer
Explanation
|
ANSWER: difference between
Explanation:
No explanation is available for this question!
|
|
2) What is PSRR value of an ideal op-amp?
a. Zero
b. Unity
c. Infinite
d. Unpredictable
|
Answer
Explanation
|
ANSWER: Zero
Explanation:
No explanation is available for this question!
|
|
3) PSSR is an op-amp parameter which defines the degree of dependence on variations in _______.
a. temperature
b. pressure
c. power supply voltage
d. slew rate
|
Answer
Explanation
|
ANSWER: power supply voltage
Explanation:
No explanation is available for this question!
|
|
4) Which among the following is/are included in DC characteristics of op-amp?
a. Input bias current
b. Thermal drift
c. Both a and b
d. None of the above
|
Answer
Explanation
|
ANSWER: Both a and b
Explanation:
No explanation is available for this question!
|
|
5) 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?
a. Virtual short
b. Virtual ground
c. Zero input current
d. None of the above
|
Answer
Explanation
|
ANSWER: Virtual ground
Explanation:
No explanation is available for this question!
|
|
6) CMRR of a differential amplifier can be improved by decreasing ______.
a. Differential voltage gain
b. Common mode voltage gain
c. Both a and b
d. None of the above
|
Answer
Explanation
|
ANSWER: Common mode voltage gain
Explanation:
No explanation is available for this question!
|
|
7) In a differential amplifier, the configuration is said to be an 'unbalanced output', if ________
a. Output voltage is measured between two collectors
b. Output is measured with respect to ground
c. Two input signals are used
d. All of the above
|
Answer
Explanation
|
ANSWER: Output is measured with respect to ground
Explanation:
No explanation is available for this question!
|
|
8) In differential mode of op-amp, if output voltage is equal to the difference between outputs of individual transistors, its amplitude will be _______the amplitude of signal voltage yielded at collector to ground.
a. twice
b. thrice
c. four times
d. one-fourth times
|
Answer
Explanation
|
ANSWER: twice
Explanation:
No explanation is available for this question!
|
|
9) In a typical op-amp, which stage is supposed to be a dual-input unbalanced output or single-ended output differential amplifier?
a. Input stage
b. Intermediate stage
c. Output stage
d. Level shifting stage
|
Answer
Explanation
|
ANSWER: Intermediate stage
Explanation:
No explanation is available for this question!
|
|
10) Which among the following is/are the feature/s characteristic/s of an integrated op-amp?
a. Small size
b. High reliability
c. Low cost & less power consumption
d. All of the above
|
Answer
Explanation
|
ANSWER: All of the above
Explanation:
No explanation is available for this question!
|
|
