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Cross Product Review


goalkeeper0

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After laying low for awhile, cross products have suddenly became very important in our current independent unit on Magnetism. For those who may have forgotten how to find a cross product, here are some reminders.

1. Cross products are needed when the multiplication of vectors is involved in the problem

2. To find cross product of a x b [where a is (ax,ay,az) and b is (bx,by,bz)]

cx=(aybz-azby)i

cy=(azbx-axbz)j

cz=(axby-aybx)k

3. The cross product is then written:

a x b = (cx,cy,cz)

[ATTACH=CONFIG]625[/ATTACH]

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