One condition for positive feedback is that the phase shift around the feedback loop must be

Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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One condition for positive feedback is that the phase shift around the feedback loop must be.
a. 90
O b. 180
Oc.
O d. none of these
O e. 45
Transcribed Image Text:One condition for positive feedback is that the phase shift around the feedback loop must be. a. 90 O b. 180 Oc. O d. none of these O e. 45
What does the negative sign in the voltage gain of the common-emitter fixed-bias configuration indicate?
a. Gain is smaller than 1.
O b. none of these
O . Gain is larger than 1.
O d. The output and input voltages are 90° out of phase.
O e. The output and input voltages are 180° out of phase.
Transcribed Image Text:What does the negative sign in the voltage gain of the common-emitter fixed-bias configuration indicate? a. Gain is smaller than 1. O b. none of these O . Gain is larger than 1. O d. The output and input voltages are 90° out of phase. O e. The output and input voltages are 180° out of phase.
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