Magentic

swechan02

A horizontal compass is placed 12cm due south from straight vertical wire carrying a 20-A current downward. In what direction does the compass needle point at the location? Assume the horizontal component of the earth's field at the point is 0.45 * 10^-4 T and the magnetic declination is ) degree.

leolaw

just based on the right hand rule #1, i think it would be north east

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swechan02	Magentic Tweet A horizontal compass is placed 12cm due south from straight vertical wire carrying a 20-A current downward. In what direction does the compass needle point at the location? Assume the horizontal component of the earth's field at the point is 0.45 * 10^-4 T and the magnetic declination is ) degree.

leolaw	just based on the right hand rule #1, i think it would be north east