50 k. aR 2 kl. 7V +. -7V $10 k2

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
Problem 22RQ
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The op amp in the circuit shown is ideal. If a is not restricted, at what value of a will the op amp saturate?

50 k.
aR
2 kl.
7V
+.
-7V
$10 k2
Transcribed Image Text:50 k. aR 2 kl. 7V +. -7V $10 k2
Expert Solution
Step 1

For determine the value of a at which op-amp will become saturate. First, determine the value of voltage across the potential divider point. Using the KCL at the inverting node,

Electrical Engineering homework question answer, step 1, image 1

Step 2

Now, apply KCL at node of potential divider.

Electrical Engineering homework question answer, step 2, image 1

Let potential divider resistor has total 10kohm value,

Electrical Engineering homework question answer, step 2, image 2

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