I know that the direction of the needle will point downward, but I don\'t unders

Question

I know that the direction of the needle will point downward, but I don't understand how to figure that out.

conducts electricity, and the spin of the Earth about its axis causes the liquid to cir- culate much like the current in a conducting loop (Fig, 20.44). Circulation within the Earth's core is thought to have a complicated flow pattern that varies with time, and these variations are believed to cause the wandering of the Earth's magnetic poles Narth geographic pole Earth's rocation axis South magnetic pole Compass needle aligns parallel to the Earth's mapnetic field with its north pole pointing toward the noerh CONCEPT CHECK 20.10 Direction of a Compass Needle A compass is usually held "horizontally" (so that the needle lies in a horizontal plane). However, the Earth's magnetic field has both horizontal and vertical com ponents (Fig, 20.42). Your friend is an arctic explorer and pitches his tent directly over the Earth's south magnetic pole. Will his compass needle point (a) toward the Earth's north geographic pole, (b) downward, or (c) upward? M-8 KB-20/360R EXAMPLE 20.10 Estimating the Electric Current in the Earth's Core North magneric pale South geographic pole

Explanation / Answer

the needle point downward

there is a mgnetic south attracts the north of the compass

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