Answers can be found at www.pearsonhighered.com/floyd.1. An amplifier that operates in the linear region at all times is(a) Class A(b) Class AB(c) Class B(d) Class C2. A certain class A power amplifier delivers 5 W to a load with an input signal power of100 mW. The power gain is(a) 100(b) 50 (c) 250(d) 53. The peak current a class A power amplifier can deliver to a load depends on the(a) maximum rating of the power supply(b) quiescent current(c) current in the bias resistors(d) size of the heat sink4. For maximum output, a class A power amplifier must maintain a value of quiescent current that is(a) one-half the peak load current(b) twice the peak load current(c) at least as large as the peak load current5. A certain class A power amplifier has VCEO = 12 V and Ico = 1A. The maximum signal(d) just above the cutoff valuepower output is(a) 6 W (b) 12 W(e) 1 W(d) 0.707 W6. The efficiency of a power amplifier is the ratio of the power delivered to the load to the(a) input signal power(b) power dissipated in the last stage(c) power from the de power supply (d) none of these answers7. The maximum efficiency of a class A power amplifier is(a) 25%(b) 50% (c) 79%(d) 98%8. The transistors in a class B amplifier are biased(a) into cutoff(b) in saturation(c) at midpoint of the load line(d) right at cutoff9. Crossover distortion is a problem for(a) class A amplifiers (b) class AB amplifiers(c) class B amplifiers(d) all of these amplifiers10. A BJT class B push-pull amplifier with no transformer coupling uses(a) two npn transistors(b) two pnp transistors(c) complementary symmetry transitors(d) none of these11. A current mirror in a push-pull amplifier should give an Ico that is(a) equal to the current in the bias resistors and diodes(b) twice the current in the bias resistors and diodes(c) half the current in the bias resistors and diodes(d) zero12. The maximum efficiency of a class B push-pull amplifier is(a) 25%(b) 50% (c) 79% (d) 98%13. The output of a certain two-supply class B push-pull amplifier has a Vcc of 20 V. If the load re-sistance is 50N, the value of Ietsan is(a) 5 mA (b) 0.4 A (c) 4 mA(d) 40 mA14. The maximum efficiency of a class AB amplifier is(a) higher than a class B(b) the same as a class B(c) about the same as a class A(d) slightly less than a class B15. The power dissipation of a class C amplifier is normally(a) very low (b) very high(c) the same as a class B(d) the same as a class A16. The efficiency of a class C amplifier is(a) less than class A(b) less than class B(e) less than class AB(d) greater than classes A, B, or ABPROBLEMS37717. The transistor in a class C amplifier conducts for(a) more than 180° of the input cycle(b) one-half of the input cycle(c) a very small percentage of the input cycle (d) all of the input cycle

In this question, We need to choose the correct options What is linear amplifier? as per our…

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Answers can be found at www.pearsonhighered.com/floyd. 1. An amplifier that operates in the linear region at all times is (a) Class A (b) Class AB (c) Class B (d) Class C

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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TRUE/FALSE QUIZ Answers can be found at www.pearsonhighered.com/floyd. 1. An ideal op-amp has an infinite input impedance. 2. An ideal op-amp has a very high output impedance. 3. The op-amp can operate in both the differential mode or the common mode. 4. Common-mode rejection means that a signal appearing on both inputs is effectively cancelled. 5. CMRR stands for common-mode rejection reference. 6. Slew rate determines how fast the output can change in response to a step input. 7. Negative feedback reduces the gain of an op-amp from its open-loop value. 8. Negative feedback reduces the bandwidth of an op-amp from its open-loop value. 9. A noninverting amplifier uses negative feedback. 10. The gain of a voltage-follower is very high. 11. Negative feedback affects the input and output impedances of an op-amp. 12. A compensated op-amp has a gain roll-off of -20 dB/decade above the critical frequency. 13. The gain-bandwidth product equals the unity-gain frequency. 14. If the feedback…