Question 170Electricity/Electronics - 1st Asst/Chief70% to pass
A digital multimeter, set up as a milliammeter on the 100 milliamp scale, is known to have an accuracy of plus or minus 2%. A display reading of 10.0 milliamps would indicate an actual line current between what two values?
AI Explanation
The correct answer is B) 9.8 and 10.2 milliamperes.
This is because the digital multimeter has an accuracy of plus or minus 2% on the 100 milliamp scale. A reading of 10.0 milliamps would have an actual line current between 9.8 milliamps (10.0 - 2% of 10.0) and 10.2 milliamps (10.0 + 2% of 10.0).
The other options are incorrect because:
A) 9.8 and 10.0 milliamperes is too narrow of a range given the 2% accuracy.
C) 8.0 and 10.0 milliamperes is too wide of a range and does not account for the 2% accuracy.
D) 8.0 and 12.0 milliamperes is also too wide of a range and does not accurately reflect the 2% accuracy.
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