- #1
Mehta29
- 16
- 0
Hey guys I'm new here and needless to say I am completely lost...
well here is the problem...
What is the maximum current that a wire can carry if an experimenter is performing an experiment 0.60 m away that deals with the Earth's magnetic field (4.5*10-5 T), which she wishes to measure to +/- 1 percent?
i thought I could just plug the #'s given into
B = (4pi*10^-7)I / (2(pi)R)
and i ended up with 135 A...which seemed muuuuuuuuch too high...and assumably was wrong...
(4.5*10^-5) = (4pi*10^-7)I / 2(pi)(.6??)
It would be greatly appreciated if i could get this help tonight...but I just want to understand what I'm doing wrong for the most part...
well here is the problem...
What is the maximum current that a wire can carry if an experimenter is performing an experiment 0.60 m away that deals with the Earth's magnetic field (4.5*10-5 T), which she wishes to measure to +/- 1 percent?
i thought I could just plug the #'s given into
B = (4pi*10^-7)I / (2(pi)R)
and i ended up with 135 A...which seemed muuuuuuuuch too high...and assumably was wrong...
(4.5*10^-5) = (4pi*10^-7)I / 2(pi)(.6??)
It would be greatly appreciated if i could get this help tonight...but I just want to understand what I'm doing wrong for the most part...