R2 500 ka R4 R3 100 0 Vin Vout R1 OA1 1 MO Fig. Ald: Op-amp circuit
R2 500 ka R4 R3 100 0 Vin Vout R1 OA1 1 MO Fig. Ald: Op-amp circuit
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter18: Resistive-inductive Parallel Circuits
Section: Chapter Questions
Problem 13PP: In an R-L parallel circuit, IT=1.25 amps, R=1.2k, and XL=1k. Find IR
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Question
For the following circuit (Fig. A1d), given the values of resistors R1 (1 MΩ), R2 (500
kΩ) and R3 (100 Ω), calculate the value of resistance R4, such that the gain of the system,
????
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= -120. Assume that the op-amp (marked as OA1 in Fig. A1d) being utilised in the
circuit is an ideal op-amp.
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