本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty,类别为 IBDP Physics
[单选题]
An ammeter has a non-negligible zero offset error. Which of tha; ,*elc dr,vr6l-bqu+;o a sne following sta,mcs.lau py 51b7i:qgvw*rrp wr8(weoj 0b 00tements8:10wewm7(c5p0 lvgu wprq b0bo.asyi, *rrj 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 error in the ammeter readingi l 5.+e 8(zrg;ov jead;js4lgs. A large systematic error results in measurements which are not accurate, in other words far from the correct value. Precision refers to how reproducible the measurements are when the exg;zl s( ;l8eojevg5i.jr4a+d periment is repeated. Precision is unaffected by a systematic error.
|