Chapter 8 Operational Amplifiers MCQs 9 min Score: 0 Attempted: 0/9 Subscribe 1. . Operational amplifier is also known as (A) Class B amplifier (B) Class A amplifier (C) Summing amplifier (D) Power amplifierShow All Answers 2. . Which statement about an operational amplifier is incorrect? (A) Its input resistance is very high (B) Its output resistance is very low (C) Its bandwidth is narrow (D) Its gain is very highShow All Answers 3. . Bandwidth of ideal operational amplifier is ________? (A) Zero (B) Very low (C) Infinite (D) None of aboveShow All Answers 4. . The operational amplifier can amplify (A) DC signals only (B) AC signals only (C) None of the above (D) Both AC and DC signalsShow All Answers 5. . The gain of an ideal operational amplifier is around (A) 100 (B) 1000 (C) 1,000,000 (D) 5000Show All Answers 6. . The output impedance of practical operational amplifier is (A) Very low (B) Infinity (C) Very high (D) ZeroShow All Answers 7. . Operational amplifier has ________ input terminals (A) Six (B) Four (C) Two (D) OneShow All Answers 8. . Ratio of differential gain to the common mode gain in an operational amplifier is (A) CMMR (B) CCMR (C) CMRR (D) CMRCShow All Answers 9. . A voltage follower has ________. (A) Voltage gain equal to 1 (B) Non-inverting configuration (C) No feedback resistor (D) All of these characteristicsShow All Answers
