my lab consists of collecting these following data: magnetic field,hall voltage and current. and i am having difficulty with theuncertainty. these are some of my data with uncertainties
B (G)+/- 3G B (T) I (mA)+/- 0.05mA I (A)+/-0.05E-3A V (mV)+/- 0.5mVV (V)+/-0.5E-3
2600 0.26 10.7 0.0107 42.9 0.0429
2500 0.25 10.6 0.0106 42.2 0.0422
questions:
1. i know that the conversion factor from gauss to tesla is 0.0001.so what happen to the +/-3G uncertainty. does it remain the same orget scaled as well?
2. from I i have to calculate J, current density, using J=I/A,where A is area. (10mm by 5mm). so how to find the uncertainty inJ
3. from V i have to calculate E, electric field, using E=V/d, whered is the length (5mm). so how to find the uncertainty in E
4. lastly i have to find the ratio of E/J. how to find theuncertainty in this one
my lab consists of collecting these following data: magnetic field,hall voltage and current. and i am having difficulty with theuncertainty. these are some of my data with uncertainties
B (G)+/- 3G B (T) I (mA)+/- 0.05mA I (A)+/-0.05E-3A V (mV)+/- 0.5mVV (V)+/-0.5E-3
2600 0.26 10.7 0.0107 42.9 0.0429
2500 0.25 10.6 0.0106 42.2 0.0422
questions:
1. i know that the conversion factor from gauss to tesla is 0.0001.so what happen to the +/-3G uncertainty. does it remain the same orget scaled as well?
2. from I i have to calculate J, current density, using J=I/A,where A is area. (10mm by 5mm). so how to find the uncertainty inJ
3. from V i have to calculate E, electric field, using E=V/d, whered is the length (5mm). so how to find the uncertainty in E
4. lastly i have to find the ratio of E/J. how to find theuncertainty in this one
