In the circuit shown in Figure 3.19, the current flowing between A and B is measured by an ammeter whose internal resistance is 100 ?. What is the measurement error caused by the resistance of the measuring instrument?

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200 Ω 300 Ω 150 Ω *500 Ω Figure 3.19 Circuit for Problem 3.8. Ammeter A B (100 (2) Amps 500 Ω 200 Ω 300 Ω 150 Ω *500 Ω Figure 3.19 Circuit for Problem 3.8. Ammeter A B (100 (2) Amps 500 Ω