18. If a 10 kVinrheostat is added in series with the bias resistor in Figure 14-56, what are the mini-mum and maximum voltage gains?R₁W10 ΚΩR₂10 ΚΩ+12 VOTA-12 VFIGURE 14-56RBIAS220 ΚΩVoutRL6.8 ΚΩTransconductance, 8m (μS)10510410³10²100.1110Bias current (A)FIGURE 14-571001000

We have to find Av(max)=? & Av(min)=?

Answered: If a 10 kn rheostat is added in series…

If a 10 kn rheostat is added in series with the bias resistor in Figure 14-56, what are the mini- mum and maximum voltage gains?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

100%

18. If a 10 k
Vin
rheostat is added in series with the bias resistor in Figure 14-56, what are the mini-
mum and maximum voltage gains?
R₁
W
10 ΚΩ
R₂
10 ΚΩ
+12 V
OTA
-12 V
FIGURE 14-56
RBIAS
220 ΚΩ
V
out
RL
6.8 ΚΩ
Transconductance, 8m (μS)
105
104
10³
10²
10
0.1
1
10
Bias current (A)
FIGURE 14-57
100
1000

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