Operational Amplifier – Exercise – 1

1. The ‘slew rate’ of an operational amplifier indicates (when a step input signal is given) :

(a) how fast its output current can change
(b) how fast its output impedance can change
(c) how fast its output power can change
(d) how fast its output voltage can change

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

2. The large signal bandwidth of an op-amp is limited by its :

(a) loop gain
(b) slew rate
(c) output impedance
(d) input frequency

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

3. The open-loop gain of an op-amp available in the market may be around.

(a) 10–1
(b) 101
(c) 105
(d) 102

Answer
Answer : (c)
Explanation
No answer description available for this question. Let us discuss.

4. For an op-amp having differential gain Av and common-mode gain Ac the CMRR is given by :

(a) Av+Ac
(b) Av/Ac
(c) (Av/Ac)+1
(d) Ac/Av

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.

5.  A differential amplifier ………..

(a) is a part of an OP-amp
(b) has one input and one output
(c) has two outputs
(d) a and c

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.
Print Friendly, PDF & Email
1 234 ... 7Next »
MORE INFORMATION
GATE Total InfoGATE 2020 BooksFree Notes
IES Total InfoIES 2020 BooksFree Mock tests
JAM Total InfoJAM 2020 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info
Copy Protected by Chetan's WP-Copyprotect. /*Radio Option*/