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7. For a common-emitter amplifier, Rc= 1.0 k2, RE = 390 2, r'.- 15 2, and Bac=75. Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is: (a) 66.7 (b) 2.56 (c) 2.47 (d) 75 9. In a certain emitter-follower circuit, the current gain is 50. The power gain is approximately: (c) I (a) 50AV (b) 50 (d) answers (a) and (b) 10. In a Darlington pair configuration, each transistor has an ac beta of 125. If RE is 560 Q, the input resistance is: (a) 560 N (b) 70 kN (c) 8.75 MQ (d) 140 kN

7. For a common-emitter amplifier, Rc= 1.0 k2, RE = 390 2, r'.- 15 2, and Bac=75. Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is: (a) 66.7 (b) 2.56 (c) 2.47 (d) 75 9. In a certain emitter-follower circuit, the current gain is 50. The power gain is approximately: (c) I (a) 50AV (b) 50 (d) answers (a) and (b) 10. In a Darlington pair configuration, each transistor has an ac beta of 125. If RE is 560 Q, the input resistance is: (a) 560 N (b) 70 kN (c) 8.75 MQ (d) 140 kN

Introductory Circuit Analysis (13th Edition)
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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6. If a 10 mV signal is applied to the base of the emitter-follower circuit in Question 5, the output signal is approximately (a) 100 mV (b) 150 mV (c) 1.5 V (d) 10 mV 7. For a common-emitter amplifier, Rc = 1.0 k2, RE = 390 2, r'.= 15 Q, and Buc = 75. Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is: (a) 66.7 (b) 2.56 (c) 2.47 (d) 75 9. In a certain emitter-follower circuit, the current gain is 50. The power gain is approximately: (c) I (a) 50AV (b) 50 (d) answers (a) and (b) 10. In a Darlington pair configuration, each transistor has an ac beta of 125. If RE is 560 2, the input resistance is: (a) 560 2 (b) 70 k2 (c) 8.75 M2 (d) 140 k2 11. The input resistance of a common-base amplifier is (a) very low (b) very high (c) the same as a CE (d) the same as a CC 12. In a common-emitter amplifier with voltage-divider bias, Rintbase) = 68 k2, R, =33 k2, and R2 =15 k2. The total input resistance is: (a) 68 k2 (b) 8.95 k2 (c) 22.2 k2 (d) 12.3 k2
Transcribed Image Text:6. If a 10 mV signal is applied to the base of the emitter-follower circuit in Question 5, the output signal is approximately (a) 100 mV (b) 150 mV (c) 1.5 V (d) 10 mV 7. For a common-emitter amplifier, Rc = 1.0 k2, RE = 390 2, r'.= 15 Q, and Buc = 75. Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is: (a) 66.7 (b) 2.56 (c) 2.47 (d) 75 9. In a certain emitter-follower circuit, the current gain is 50. The power gain is approximately: (c) I (a) 50AV (b) 50 (d) answers (a) and (b) 10. In a Darlington pair configuration, each transistor has an ac beta of 125. If RE is 560 2, the input resistance is: (a) 560 2 (b) 70 k2 (c) 8.75 M2 (d) 140 k2 11. The input resistance of a common-base amplifier is (a) very low (b) very high (c) the same as a CE (d) the same as a CC 12. In a common-emitter amplifier with voltage-divider bias, Rintbase) = 68 k2, R, =33 k2, and R2 =15 k2. The total input resistance is: (a) 68 k2 (b) 8.95 k2 (c) 22.2 k2 (d) 12.3 k2
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