Find magnitude of current to produce magnetic field

AI Thread Summary
To determine the current needed to produce a magnetic field of 6 x 10^-5 T, the relevant equation is B=(μ0/4∏)∫I*dl X r^ / r^2. The discussion emphasizes the importance of understanding the relationship between current and magnetic field strength. Participants are encouraged to share their attempts and identify specific areas where they need assistance. The focus is on applying the formula correctly to solve for the current. Engaging with the problem collaboratively can lead to a clearer solution.
kgal
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Homework Statement


Suppose that the magnetic field of the Earth were due to a single current moving in a circle of radius 1758 km through the Earth's molten core. The strength of the Earth's magnetic field on the surface near a magnetic pole is about 6. 10^-5 T. About how large a current would be required to produce such a field?


Homework Equations


B=(μ0/4∏)∫I*dl X r^ / r^2


The Attempt at a Solution


 
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hi kgal! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 

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