# Answer on Mechanics | Relativity Question for eseyin

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

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

Expert's answer

Answer is C. adjusting an ammeter to remove zero error before measuring current

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