- #1
PChar
- 11
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Hi, I've just got a question about uncertainties that came up while doing a lab report.
I have a set of data for currents required to cancel the deflection of an electron beam caused by the Earth's magnetic field:
0.195 A
0.220 A
0.250 A
0.251 A
0.239 A
Because of the difficulty in measuring the straightness of the beam, my lab partner and I decided on an uncertainty of +/-0.05 A.
Do I need to round the currents to one less decimal place because of my uncertainty, or can I keep everything as is?
I have a set of data for currents required to cancel the deflection of an electron beam caused by the Earth's magnetic field:
0.195 A
0.220 A
0.250 A
0.251 A
0.239 A
Because of the difficulty in measuring the straightness of the beam, my lab partner and I decided on an uncertainty of +/-0.05 A.
Do I need to round the currents to one less decimal place because of my uncertainty, or can I keep everything as is?