Hello everyone, I'm missing this problem and i aksed the professor if i was doing it wrong and he said, nope it looks like you just use that equation and solve for I. Here is the equation:(adsbygoogle = window.adsbygoogle || []).push({});

M = IA, where M stands for the moment; A stands for Area.

So you know the Moment is 1022 J/T. You also know the area is 4PIr^2;

A = 4PI(3200E3)^2;

A = 1.29E14;

I = M/A

I = (8E22)/1.29E14 = 620155038.8 = 6.2E8

Am i doing this right? It says its wrong!

The magnetic dipole moment of Earth is 8E22 J/T. Assume that this is produced by charges flowing in Earth's molten outer core. If the radius of their circular path is 3200 km, calculate the current they produce.

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# Homework Help: Finding the current given a magnetic dipole, its plug in chug, whats going wrong?

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