งา Stage 1 AV R n1 R out 1 w V. in2 Stage 21 R R out Figure Q2

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter4: Symbols
Section: Chapter Questions
Problem 3SQ: What do the following abbreviations stand for? a. SPST b. SPDT c. DPST d. DPDT e. NO f. NC
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What is the power gain in dB of the cascade arrangement shown in Figure Q2 on
the next page?
Input resistances of the two amplifiers and the load resistance are:

Rin1 = 1kiloohm , Rin2 = 100 kiloohm , RL = 10 kiloohm
The voltage gains for each stage are: A1 = 103, A2 = 100.
Output resistances of each stage can be ignored.

งา
Stage 1
AV
R
n1
R
out 1
w
V.
in2
Stage 21
R
R
out
Figure Q2
Transcribed Image Text:งา Stage 1 AV R n1 R out 1 w V. in2 Stage 21 R R out Figure Q2
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