锟斤拷锟斤拷锟脚堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟角高讹拷锟斤拷锟斤拷知锟絉(sh锟斤拷)锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷(j锟斤拷ng)锟斤拷锟斤拷(hu锟斤拷)锟絚電學(xu锟斤拷)锟斤拷锟斤拷锟斤拷锟絎(xu锟斤拷)锟斤拷锟絕锟斤拷锟斤拷锟絵锟斤拷锟斤拷锟斤拷锟角磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷膮R锟斤拷锟斤拷希锟斤拷锟斤拷(du锟斤拷)锟斤拷锟斤拷袔锟斤拷锟�锟斤拷

锟斤拷锟斤拷一锟斤拷锟脚堬拷(ch锟斤拷ng)

锟斤拷锟斤拷锟脚極锟酵磁極之锟絞锟斤拷锟洁互锟斤拷锟斤拷锟斤拷通锟絕(gu锟斤拷)锟脚堬拷(ch锟斤拷ng)锟絣(f锟斤拷)锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�?ch锟斤拷)锟斤拷锟斤拷g锟絘(ch锟斤拷n)锟斤拷锟脚堬拷(ch锟斤拷ng)锟斤拷小锟斤拷锟斤拷锟皆擄拷艌锟�(ch锟斤拷ng)锟斤拷锟杰碉拷锟斤拷锟斤拷锟斤拷锟矫★拷锟脚極锟斤拷锟斤拷锟街�锟絞锟斤拷锟洁互锟斤拷锟斤拷也锟斤拷通锟絕(gu锟斤拷)锟脚堬拷(ch锟斤拷ng)锟絣(f锟斤拷)锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷之锟絞锟斤拷锟洁互锟斤拷锟斤拷也锟斤拷通锟絕(gu锟斤拷)锟脚堬拷(ch锟斤拷ng)锟絘(ch锟斤拷n)锟斤拷锟斤拷

锟斤拷锟斤拷锟脚堬拷(ch锟斤拷ng)锟角达拷锟斤拷锟节达拷锟絯锟斤拷锟斤拷锟斤拷锟斤拷\(y锟斤拷n)锟斤拷(d锟斤拷ng)電猴拷锟斤拷?ch锟斤拷)锟斤拷锟斤拷g锟斤拷一锟絅锟斤拷锟斤拷锟轿態(t锟斤拷i)锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟脚極锟斤拷锟斤拷锟斤拷锟斤拷约锟斤拷锟斤拷锟�?ch锟斤拷)锟斤拷锟斤拷g锟絘(ch锟斤拷n)锟斤拷锟脚堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟脚堬拷(ch锟斤拷ng)锟侥伙拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟角岋拷(du锟斤拷)锟斤拷锟斤拷锟斤拷锟叫的磁極锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟脚現(xi锟斤拷n)锟斤拷锟诫姳锟斤拷|(zh锟斤拷)

锟斤拷锟斤拷1.锟絖锟絤锟斤拷(sh锟斤拷)锟�(y锟斤拷n)

锟斤拷锟斤拷锟斤拷電猴拷锟絊锟絕锟斤拷锟斤拷锟絲锟紸锟絇(p锟斤拷n)锟斤拷锟斤拷锟斤拷锟紻(zhu锟斤拷n)锟斤拷锟絣(f锟斤拷)锟紽(xi锟斤拷n)小锟斤拷針發(f锟斤拷)锟斤拷偏锟紻(zhu锟斤拷n)锟斤拷锟絝(shu锟斤拷)锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷電荷產(ch锟斤拷n)锟斤拷锟剿磁堬拷(ch锟斤拷ng)锟斤拷小锟斤拷锟斤拷艿锟斤拷艌锟�(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷锟矫讹拷锟絣(f锟斤拷)锟斤拷偏锟紻(zhu锟斤拷n)锟斤拷

锟斤拷锟斤拷2.锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絝(shu锟斤拷)

锟斤拷锟斤拷锟斤拷锟斤拷(gu锟斤拷)锟絎(xu锟斤拷)锟竭帮拷锟斤拷锟斤拷锟�锟斤拷锟斤拷原锟接★拷锟斤拷锟接碉拷锟斤拷锟絴(zh锟斤拷)微锟斤拷锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟斤拷锟斤拷一锟絅锟絟(hu锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞姑匡拷锟�(g锟斤拷)锟斤拷锟絴(zh锟斤拷)微锟斤拷锟斤拷锟缴烇拷微小锟侥达拷锟絯锟斤拷锟斤拷锟侥兩傦拷(c锟斤拷)锟洁當(d锟斤拷ng)锟节兩傦拷(g锟斤拷)锟脚極锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷努F(xi锟斤拷n)锟斤拷锟诫姳锟斤拷|(zh锟斤拷)锟斤拷锟斤拷

锟斤拷锟斤拷一锟斤拷未锟斤拷锟脚伙拷锟斤拷锟紽锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟饺★拷锟斤拷锟斤拷s锟統锟給(w锟斤拷)锟铰碉拷锟斤拷锟斤拷锟斤拷锟侥磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�(du锟斤拷)锟解不锟紷锟斤拷锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟紽锟斤拷锟斤拷锟脚伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷锟斤拷锟斤拷锟酵�锟斤拷锟缴端岋拷(du锟斤拷)锟斤拷锟紷示锟絕锟斤拷(qi锟斤拷ng)锟侥达拷锟斤拷锟斤拷锟轿成磁極锟斤拷注锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟斤拷锟絯锟杰碉拷锟竭溫伙拷锟斤拷锟斤拷锟矫擄拷锟斤拷(hu锟斤拷)失去锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷3.锟脚現(xi锟斤拷n)锟斤拷锟诫姳锟斤拷|(zh锟斤拷)

锟斤拷锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)锟斤拷電荷ｏ拷锟斤拷锟斤拷锟斤拷a(ch锟斤拷n)锟斤拷锟脚堬拷(ch锟斤拷ng)锟斤拷锟脚堬拷(ch锟斤拷ng)锟斤拷(du锟斤拷)锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)電荷ｏ拷锟斤拷锟斤拷锟斤拷写艌锟�(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫的磁現(xi锟斤拷n)锟襟都匡拷锟皆歸锟結(ji锟斤拷)锟斤拷锟絓(y锟斤拷n)锟斤拷(d锟斤拷ng)電荷ｏ拷锟斤拷锟斤拷锟酵�锟絕(gu锟斤拷)锟脚堬拷(ch锟斤拷ng)锟斤拷锟絣(f锟斤拷)锟斤拷锟洁互锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟脚堬拷(ch锟斤拷ng)锟侥凤拷锟斤拷

锟斤拷锟斤拷規(gu锟斤拷)锟斤拷锟斤拷锟节磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷一锟絚(di锟斤拷n)小锟斤拷針憋拷锟絆锟斤拷锟斤拷锟侥凤拷锟斤拷锟洁即小锟斤拷锟斤拷o止锟絩(sh锟斤拷)锟斤拷锟絆锟斤拷指锟侥凤拷锟斤拷锟斤拷锟斤拷锟揭伙拷c(di锟斤拷n)锟侥磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟�锟斤拷锟斤拷锟�锟斤拷锟脚感撅拷

锟斤拷锟斤拷1.锟脚感撅拷锟侥革拷锟筋：锟节磁堬拷(ch锟斤拷ng)锟叫�锟�(hu锟斤拷)锟斤拷一系锟斤拷锟叫凤拷锟斤拷锟斤拷锟斤拷锟�锟斤拷锟斤拷锟紷些锟斤拷锟斤拷锟斤拷锟斤拷每一锟絚(di锟斤拷n)锟叫撅拷锟斤拷锟津都革拷該锟絚(di锟斤拷n)锟脚堬拷(ch锟斤拷ng)锟斤拷锟斤拷一锟斤拷锟斤拷

锟斤拷锟斤拷2.锟脚感撅拷锟斤拷锟斤拷锟絚(di锟斤拷n)

锟斤拷锟�锟斤拷锟�1锟斤拷锟节达拷锟絯锟解部锟脚感撅拷锟斤拷N锟絆锟斤拷S锟絆锟斤拷锟节达拷锟絯锟斤拷(n锟斤拷i)锟斤拷锟脚感撅拷锟斤拷S锟絆锟斤拷N锟絆

锟斤拷锟�锟斤拷锟�2锟斤拷锟脚感撅拷锟斤拷锟絔锟斤拷锟斤拷锟斤拷

锟斤拷锟�锟斤拷锟�3锟斤拷锟脚感撅拷锟斤拷锟洁交

锟斤拷锟斤拷锟斤拷4锟斤拷锟脚感撅拷锟斤拷锟斤拷锟杰程度凤拷映锟脚堬拷(ch锟斤拷ng)锟侥忥拷(qi锟斤拷ng)锟斤拷锟斤拷锟脚感撅拷越锟杰的地凤拷锟脚堬拷(ch锟斤拷ng)越锟斤拷(qi锟斤拷ng)

锟斤拷锟斤拷3.锟阶種锟斤拷锟酵磁堬拷(ch锟斤拷ng)锟侥磁感撅拷

锟斤拷锟斤拷锟斤拷1锟斤拷锟絣锟轿达拷锟紽

锟斤拷锟�锟斤拷锟�2锟斤拷通锟街憋拷锟�(d锟斤拷o)锟斤拷

锟斤拷锟斤拷a.锟斤拷锟洁定锟絫锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷住锟斤拷(d锟斤拷o)锟斤拷锟斤拷讓锟斤拷直锟侥达拷拇指锟斤拷指锟侥凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷指锟侥凤拷锟斤拷锟斤拷谴鸥芯锟斤拷h(hu锟斤拷n)锟紷锟侥凤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷

锟斤拷锟斤拷1.锟斤拷锟絰锟斤拷锟节磁堬拷(ch锟斤拷ng)锟叫达拷直锟节磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟酵�锟街憋拷锟�(d锟斤拷o)锟斤拷锟斤拷锟斤拷锟杰的磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷锟絀锟酵岋拷(d锟斤拷o)锟斤拷锟絃(zh锟斤拷ng)锟斤拷l锟侥乘積Il锟侥憋拷值锟斤拷锟斤拷通電岋拷(d锟斤拷o)锟斤拷處锟侥磁感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷锟斤拷

锟斤拷锟斤拷2.锟斤拷锟絰式锟斤拷

锟斤拷锟斤拷3.锟斤拷位锟斤拷锟斤拷斯锟斤拷锟斤拷T锟斤拷锟斤拷1T=1N/A.m

锟斤拷锟斤拷4.锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷锟斤拷矢锟斤拷锟斤拷锟戒方锟斤拷锟斤拷菍锟�(du锟斤拷)锟斤拷(y锟斤拷ng)處锟脚堬拷(ch锟斤拷ng)锟斤拷锟斤拷

锟斤拷锟斤拷5.锟斤拷锟斤拷锟斤拷锟絰锟斤拷锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷锟角凤拷映锟脚堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟斤拷锟絎(xu锟斤拷)锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絚锟絲锟�(y锟斤拷n)通锟街憋拷锟�(d锟斤拷o)锟斤拷锟斤拷锟斤拷锟斤拷锟�(qi锟斤拷ng)锟饺的达拷小锟斤拷锟斤拷(d锟斤拷o)锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟教碉拷锟斤拷锟斤拷?z锟斤拷)o锟絇(gu锟斤拷n)锟斤拷

锟斤拷锟斤拷6.锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟饺的达拷小锟斤拷锟矫磁感撅拷锟斤拷锟斤拷锟杰程度侊拷(l锟斤拷i)锟斤拷示锟斤拷規(gu锟斤拷)锟斤拷锟斤拷锟节达拷直锟节磁堬拷(ch锟斤拷ng)锟斤拷锟斤拷锟�1m2锟斤拷e锟较的磁感撅拷锟絣锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷拇鸥袘锟�(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷一锟铰★拷

锟斤拷锟斤拷7.锟斤拷(qi锟斤拷ng)锟脚堬拷(ch锟斤拷ng)

锟斤拷锟�锟斤拷锟�1锟斤拷锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟饺的达拷小锟酵凤拷锟斤拷處處锟斤拷鹊拇艌锟�(ch锟斤拷ng)锟叫勶拷(qi锟斤拷ng)锟脚堬拷(ch锟斤拷ng)

锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷(qi锟斤拷ng)锟脚堬拷(ch锟斤拷ng)锟侥磁感撅拷锟角撅拷锟斤拷锟斤拷平锟叫碉拷一锟組直锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷

锟斤拷锟斤拷1.锟斤拷锟絰锟斤拷锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷B锟絚锟斤拷eS锟侥乘積锟斤拷锟斤拷锟斤拷锟斤拷锟絕(gu锟斤拷)锟紷锟斤拷(g锟斤拷)锟斤拷拇锟酵�锟斤拷锟斤拷

锟斤拷锟斤拷2.锟斤拷锟絰式锟斤拷φ=BS锟斤拷B锟絚S锟斤拷直锟斤拷φ=BScosθ锟斤拷θ锟斤拷B锟絚S之锟絞锟侥夾锟角ｏ拷

锟斤拷锟斤拷3.锟斤拷位锟斤拷锟絝锟斤拷锟斤拷Wb锟斤拷

锟斤拷锟斤拷4.锟斤拷锟斤拷锟斤拷锟絰锟斤拷锟斤拷示锟斤拷锟絕(gu锟斤拷)锟脚堬拷(ch锟斤拷ng)锟斤拷某锟斤拷(g锟斤拷)锟斤拷拇鸥芯锟斤拷l锟斤拷(sh锟斤拷)锟斤拷

锟斤拷锟斤拷5.B=φ/S锟斤拷锟斤拷锟皆磁感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷也锟叫达拷通锟杰讹拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷1.锟脚堬拷(ch锟斤拷ng)锟斤拷(du锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷邪锟斤拷锟斤拷锟�

锟斤拷锟斤拷2.锟斤拷锟斤拷锟斤拷锟斤拷小

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥达拷小锟斤拷锟斤拷锟斤拷锟絀锟斤拷锟斤拷(d锟斤拷o)锟斤拷锟絃(zh锟斤拷ng)锟斤拷L锟斤拷锟脚感戯拷(y锟斤拷ng)锟斤拷(qi锟斤拷ng)锟斤拷B锟皆硷拷I锟斤拷B锟絞锟侥夾锟角碉拷锟斤拷锟斤拷sinθ锟侥乘積锟斤拷锟斤拷

锟斤拷锟斤拷F=BIlsinθ锟斤拷

锟斤拷锟斤拷注锟解：锟斤拷式只锟絤锟斤拷锟节勶拷(qi锟斤拷ng)锟脚堬拷(ch锟斤拷ng)锟斤拷

锟斤拷锟斤拷3.锟斤拷锟斤拷锟斤拷锟侥凤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷侄锟斤拷t锟叫旓拷

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锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號(h锟斤拷o)