 鲜花( 2)  鸡蛋( 0)
|
知道地球磁场的single dipole moment Mx, Mz,My如何求 相交的位置7 A" A' Y; f0 C) H+ `
+ u$ N1 a# X* B& N2 k5 J
/ |. b- V1 m- P6 z4 G6 `. S6 d6 v( d' x
(2) The Earth’s main magnetic field at the surface (radius = 6371 km) can be approximated by a single dipole moment at the Earth's centre with the following (x,y,z) components:
8 @- {6 C0 r V5 G0 J" H5 E' a- D
) ]3 Q9 E' g% V- Pmz = -7.7 x 1022 A m2, mx = -0.479 x 1022 A m2, my = 1.399 x 1022 A m2.) ~+ Z' c1 G0 u' ~9 b
' Q. [" F# {1 V' W7 {3 E, k* n. Y* N
Calculate the location (latitude, longitude) where the axis of this dipole field intersects the Earth's surface (i.e. where the magnetic field is locally purely vertical and upward).* T6 ^8 }3 a" `7 M
|
|
狗仔卡
发表于 2012-4-2 21:27
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡