In kiiska, mid kasta oo la gml ama hml Wehliyaha la heli karo in ka badan hal dhererka (tusaale ahaan, kormeerayaasha dhulka iyo dayax gacmeedyada). In kiiska, mid kasta oo la gml ama hml Wehliyaha loo qaybin karaa laba shuruudood: mid ka mid ah in hoos u dhac la radius sida 1/rl + 1 iyo mid ka mid ah in kordhiyaa la radius sida rl. shuruudaha kordhaya waafaqsan yihiin ilaha dibadda (currents ee ionosphere iyo magnetosphere). Si kastaba ha ahaatee, celcelis ahaan dhowr sano ka qaybqaadashada dibadda celcelis ahaan eber. shuruudaha haray saadaalinaya in awoodda ee il dipole (l = 1) hoos u dhac sida 1/r2.
xaaladaha ilaa heerka 14 ama ka yar