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

[单选题]
An ammeter has a non-negligibd:y.ynbqw m n /ng2zz4x+k*i6le zero offse, 11kmakabg 9- wz 0/ezlnexx1t error. Which of the following statemen1w b/l0a1-azmenx xekk1, 9z gts is correct?

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 will produce a systematic errorzp+zghb9gc 1 7:rg.z i in the ammeter readings. A large systematic error results in measurements which are not accurate, in other wordsgzr b:z+1h ip.cg9zg 7 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.