※ [本文轉錄自 Grad-ProbAsk 看板] 作者: askaskaskask (問問題) 看板: Grad-ProbAsk 標題: [問題] 請問一個電磁學的問題 時間: Thu Mar 6 02:08:41 2008 1. A conducting sphere of radius R is charge to a potential V and spun about a diameter at an angular velocity ω a) What's the surface current density ? b) What's the magnetic induction at the center ? c) What's the magnetic dipole moment ? d) Wha's the numerical value of this magnetic induction for a sphere 10.0cm in radius , charged to 10.0 kilovolts ,and spinning at 1.00x10^4 turns/min 想請問一下這個題目如何做??謝謝 希望大家可以幫忙依下，不會做，不過看題目感覺不難，拜託拜託，大家解救一下小弟吧 --

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※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.170.56.91