Question #55924
Which of the following experimental techniques reduces the systematic error of the quantity being investigated?

A. timing a large number of oscillations to find a period
B. measuring the diameter of a wire repeatedly and calculating the average
C. adjusting an ammeter to remove zero error before measuring current
D. counting down to start the stop-watch at zero in timing oscillations
1
Expert's answer
2015-11-06T00:00:47-0500
Answer is C. adjusting an ammeter to remove zero error before measuring current

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