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Authors:
J. David Irwin, R. Mark Nelms
Chapter:
Operational Amplifiers
Exercise:
Problems
Question:44 | ISBN:9780470633229 | Edition: 10

Question

The electronic ammeter in Example 4.9 has been modified and is shown in Fig. P4.44. The selector switch allows the user to change the range of the meter. Using values for R1 and R2 from Example 4.9, find the values of RA and  RB that will yield a 10-V output when the current being measured is 100 mA and 10 mA, respectively.

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