Kognity IB Physics A.0 Measurements & Uncertainty (id: d45b49a5c)

[单选题]
An ammeter has a non-negligible zero offset error. Which of the foll94 k x0wbn1njwowing sta5lm;2y6s m lxxvev a0bqv.:z/tements is cm lm:0q.zxls65 v2 ;bv/xaevyorrect?

A. The readings from the ammeter will be accurate but not precise.
B. The readings from the ammeter will be neither accurate nor precise.
C. The readings from the ammeter will be precise and accurate.
D. The readings from the ammeter will be precise but not accurate.


参考答案:  D


本题详细解析:
The zero offset error we3mjfd4 y w/c+ill produce a systematic error in the ammeter readings. A large systematic error results in measurements mdejfy 3 /+w4cwhich are not accurate, in other words far from the correct value. Precision refers to how reproducible the measurements are when the experiment is repeated. Precision is unaffected by a systematic error.