- 锟斤拷锟斤拷锟饺猴拷锟斤拷锟街讹拷锟� 锟狡硷拷锟饺ｏ拷
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锟饺猴拷锟斤拷锟斤拷锟斤拷锟街讹拷锟�
锟斤拷锟斤拷锟饺猴拷锟斤拷锟斤拷谴锟斤拷锟斤拷诘锟斤拷锟斤拷诓锟斤拷模锟斤拷锟叫★拷锟斤拷锟绞憋拷浞拷锟斤拷浠拷暮愣拷牡锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿斤拷群锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷每一锟斤拷牡锟斤拷锟角匡拷鹊拇锟叫★拷头锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷谋洌拷锟斤拷锟斤拷锟叫★拷锟斤拷锟斤拷锟斤拷锟斤拷群锟斤拷锟斤拷锟斤拷锟斤拷知识锟姐，希锟斤拷锟杰帮拷锟斤拷锟斤拷锟斤拷遥锟�
锟斤拷锟斤拷1锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷锟藉：锟斤拷傻亩锟斤拷锟斤拷贫锟斤拷纬傻锟斤拷锟斤拷锟�
锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷锟侥凤拷锟津：规定锟斤拷锟斤拷啥锟斤拷锟斤拷贫锟斤拷姆锟斤拷锟轿拷锟斤拷锟斤拷姆锟斤拷锟�
锟斤拷锟斤拷锟斤拷锟斤拷锟铰凤拷械锟斤拷锟斤拷筛叩锟斤拷频锟斤拷锟斤拷锟酵碉拷锟狡点，锟节碉拷源锟斤拷锟节诧拷锟斤拷锟斤拷锟缴低碉拷锟狡碉拷锟斤拷锟斤拷叩锟斤拷频悖拷筛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2锟斤拷锟斤拷锟斤拷强锟饺ｏ拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷锟藉：通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷牡锟斤拷锟斤拷锟酵拷锟斤拷锟叫╋拷锟斤拷锟斤拷锟斤拷锟绞憋拷锟侥憋拷值锟斤拷I=q/t
锟斤拷锟斤拷锟斤拷2锟斤拷锟节癸拷锟绞碉拷位锟斤拷锟叫碉拷锟斤拷锟侥碉拷位锟角帮拷锟斤拷1mA=10-3A锟斤拷1锟斤拷A=10-6A
锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷强锟饺的讹拷锟斤拷式锟叫ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵憋拷锟斤拷锟斤拷贫锟斤拷锟絨应为锟斤拷锟斤拷锟斤拷锟接的碉拷锟斤拷锟斤拷汀锟�
锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷锟藉：锟斤拷锟斤拷锟斤拷锟剿的碉拷压锟斤拷通锟斤拷锟斤拷锟斤拷锟叫的碉拷锟斤拷锟侥憋拷值锟叫碉拷锟斤拷牡锟斤拷琛�
锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷式锟斤拷R=U/I锟斤拷锟斤拷位锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟角碉拷锟藉本锟斤拷锟斤拷锟斤拷锟皆ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟剿的碉拷压锟斤拷通锟斤拷锟斤拷锟斤拷锟睫关★拷
锟斤拷锟斤拷4锟斤拷锟斤拷锟借定锟斤拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷锟捷ｏ拷锟斤拷锟铰度诧拷锟斤拷时锟斤拷锟斤拷锟斤拷牡锟斤拷锟絉锟斤拷锟斤拷锟侥筹拷锟斤拷L锟斤拷锟斤拷锟饺ｏ拷锟斤拷锟斤拷锟侥猴拷锟斤拷锟斤拷S锟缴凤拷锟饺★拷
锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷式锟斤拷R=锟斤拷L/S锟斤拷
锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟劫达拷细锟斤拷锟饺的碉拷锟竭ｏ拷
锟斤拷锟斤拷锟斤拷浓锟饺撅拷锟饺的碉拷锟揭猴拷锟�
锟斤拷锟斤拷5锟斤拷锟斤拷锟斤拷锟绞ｏ拷锟斤拷映锟剿诧拷锟较对碉拷锟斤拷锟斤拷锟借碍锟斤拷锟矫★拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷些锟斤拷锟较的碉拷锟斤拷锟斤拷锟斤拷锟铰讹拷锟斤拷锟竭讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫╋拷锟斤拷系牡锟斤拷锟斤拷锟斤拷锟斤拷露锟斤拷锟斤拷叨锟斤拷锟叫★拷锟斤拷锟诫导锟斤拷途锟皆碉拷澹╋拷锟斤拷锟叫╋拷锟斤拷系牡锟斤拷锟斤拷始锟斤拷锟斤拷锟斤拷锟斤拷露锟接帮拷欤拷锟斤拷锟酵拷涂锟酵拷锟斤拷锟�
锟斤拷锟斤拷锟斤拷2锟斤拷锟诫导锟藉：锟斤拷锟斤拷锟斤拷锟杰斤拷锟节碉拷锟斤拷途锟皆碉拷锟街拷洌拷锟斤拷业锟斤拷锟斤拷锟斤拷露鹊锟斤拷锟斤拷佣锟斤拷锟叫★拷锟斤拷锟斤拷植锟斤拷铣锟轿拷氲硷拷澹拷氲硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷裕锟斤拷锟斤拷锟斤拷锟斤拷裕锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟斤拷锟斤拷浴锟�
锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟斤拷锟襟：碉拷锟铰度斤拷锟酵碉拷锟斤拷锟斤拷锟斤拷雀锟斤拷锟绞憋拷锟侥承╋拷锟斤拷系牡锟斤拷锟斤拷锟酵蝗伙拷锟叫★拷锟斤拷悖拷锟斤拷锟斤拷锟斤拷锟叫筹拷锟斤拷锟斤拷锟襟，达拷锟斤拷锟斤拷锟斤拷状态锟斤拷锟斤拷锟斤拷谐锟斤拷锟斤拷濉�
锟斤拷锟斤拷6锟斤拷锟界功锟酵碉拷锟斤拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟界功锟酵电功锟绞ｏ拷
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷实锟斤拷锟角电场锟斤拷锟皆碉拷锟斤拷锟斤拷锟斤拷锟斤拷绯★拷锟斤拷缘锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷傻牡锟斤拷锟斤拷芗锟斤拷伲锟斤拷锟斤拷锟斤拷锟阶拷锟轿拷锟斤拷锟斤拷锟绞斤拷锟斤拷堋锟斤拷锟剿电功W=qU=UIt锟斤拷锟斤拷锟角硷拷锟斤拷绻︼拷毡锟斤拷锟斤拷玫墓锟绞斤拷锟�
锟斤拷锟斤拷锟斤拷位时锟斤拷锟节碉拷锟斤拷锟斤拷锟侥癸拷锟叫电功锟绞ｏ拷P=W/t=UI锟斤拷锟斤拷锟角硷拷锟斤拷绻︼拷锟斤拷毡锟斤拷锟斤拷玫墓锟绞斤拷锟�
锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷锟斤拷锟缴ｏ拷Q=I2Rt锟斤拷式锟斤拷Q锟斤拷示锟斤拷锟斤拷通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轿伙拷锟絁锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角对达拷锟斤拷锟斤拷锟铰凤拷锟斤拷嵌苑谴锟斤拷锟斤拷锟斤拷路锟斤拷锟斤拷锟斤拷锟矫的★拷
锟斤拷锟斤拷锟斤拷3锟斤拷锟界功锟酵碉拷锟饺的癸拷系
锟斤拷锟斤拷锟劫达拷锟斤拷锟斤拷锟铰凤拷锟斤拷牡牡锟斤拷锟饺拷锟阶拷锟轿拷锟斤拷埽锟斤拷绻︼拷偷锟斤拷锟斤拷锟斤拷锟饺的★拷锟斤拷锟斤拷锟斤拷W=Q锟斤拷UIt=I2Rt锟斤拷U=IR锟斤拷欧姆锟斤拷锟缴筹拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟节非达拷锟斤拷锟斤拷锟铰凤拷锟斤拷牡牡锟斤拷锟揭伙拷锟斤拷锟阶拷锟轿拷锟斤拷埽锟斤拷锟揭伙拷锟斤拷锟阶拷锟轿拷锟斤拷锟斤拷锟绞斤拷锟斤拷堋锟斤拷锟斤拷锟斤拷锟絎>Q锟斤拷UIt>I2Rt锟斤拷U>IR锟斤拷欧姆锟斤拷锟缴诧拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷7锟斤拷锟界动锟斤拷锟斤拷1锟斤拷锟斤拷锟斤拷锟斤拷锟藉：锟斤拷映锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷式锟斤拷转锟斤拷为锟斤拷锟杰憋拷锟斤拷锟叫★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷诟傻锟截的电动锟斤拷E=15V锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷路锟秸合后，碉拷锟斤拷通锟斤拷锟斤拷源锟斤拷每通锟斤拷1C锟侥碉拷桑锟斤拷傻锟截就帮拷15J锟侥伙拷学锟斤拷转锟斤拷为锟斤拷锟杰★拷
锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷小锟斤拷锟斤拷锟节碉拷路锟斤拷通锟斤拷1C锟斤拷锟斤拷锟绞憋拷锟皆达拷锟斤拷峁╋拷牡锟斤拷艿锟斤拷锟街碉拷锟斤拷锟斤拷诘锟皆疵伙拷薪锟斤拷锟斤拷路时锟斤拷锟斤拷锟斤拷牡锟窖癸拷锟斤拷诒蘸系锟铰凤拷械锟斤拷锟斤拷锟斤拷锟斤拷路锟较碉拷锟狡斤拷锟斤拷之锟斤拷E=U锟斤拷+U锟节★拷
锟斤拷锟斤拷8锟斤拷锟秸合碉拷路欧姆锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷锟捷ｏ拷锟秸合碉拷路锟侥碉拷锟斤拷强锟饺革拷锟斤拷源锟侥电动锟狡筹拷锟斤拷锟饺ｏ拷锟斤拷锟秸合碉拷路锟杰碉拷锟斤拷煞锟斤拷取锟�
锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷式锟斤拷I=E/锟斤拷R+r锟斤拷
锟斤拷锟斤拷锟斤拷3锟斤拷锟杰碉拷锟斤拷I锟斤拷路锟剿碉拷压U锟斤拷锟斤拷锟斤拷锟絉锟侥变化锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷R锟斤拷锟斤拷时锟斤拷I锟斤拷小锟斤拷锟街撅拷U=E-Ir知锟斤拷U锟斤拷蟆５锟絉锟斤拷锟襟到★拷时锟斤拷I=0锟斤拷U=E锟斤拷锟斤拷路锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷R锟斤拷小时锟斤拷I锟斤拷锟斤拷志锟経=E-Ir知锟斤拷U锟斤拷小锟斤拷锟斤拷R锟斤拷小锟斤拷锟斤拷时锟斤拷I=Er锟斤拷U=0锟斤拷锟斤拷路锟斤拷锟斤拷
锟斤拷锟斤拷9锟斤拷路锟剿碉拷压锟斤拷锟斤拷锟斤拷浠拷锟较低硷拷锟�
锟斤拷锟斤拷U锟斤拷=E-Ir锟斤拷锟斤拷式锟侥猴拷锟斤拷图锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷斜锟斤拷直锟竭★拷锟斤拷锟斤拷锟斤拷锟斤拷锟较的截撅拷锟斤拷诘缍拷频拇锟叫★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷系慕鼐锟斤拷锟节讹拷路锟斤拷锟斤拷I锟教ｏ拷图锟竭碉拷斜锟斤拷值锟斤拷锟节碉拷源锟斤拷锟斤拷拇锟叫★拷锟�
锟斤拷锟斤拷10锟斤拷锟秸合碉拷路锟叫碉拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷源锟斤拷锟杰癸拷锟绞ｏ拷锟斤拷锟角碉拷源锟结供锟斤拷锟杰癸拷锟绞ｏ拷锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷转锟斤拷为锟斤拷锟杰的癸拷锟绞ｏ拷也锟叫碉拷源锟斤拷锟侥的癸拷锟斤拷P锟斤拷=EI锟斤拷
锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷剩锟斤拷锟斤拷锟斤拷锟斤拷路锟斤拷锟斤拷锟侥的电功锟绞★拷锟斤拷锟节达拷锟斤拷锟斤拷锟铰凤拷锟斤拷锟皆达拷锟斤拷锟斤拷锟斤拷锟绞★拷
锟斤拷锟斤拷P锟斤拷=I2R=[E/锟斤拷R+r锟斤拷]2R锟斤拷锟斤拷R=r时锟斤拷锟斤拷源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为Pmax=E2/4r
锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷源锟节耗癸拷锟绞ｏ拷锟节碉拷路锟斤拷锟斤拷锟侥的电功锟斤拷P锟斤拷=U锟斤拷I=I2r
锟斤拷锟斤拷锟斤拷4锟斤拷锟斤拷源锟斤拷效锟绞ｏ拷指锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷源锟侥癸拷锟斤拷之锟饺ｏ拷锟斤拷锟斤拷=P锟斤拷/P锟斤拷=IU/IE=U/E锟斤拷
锟斤拷锟饺猴拷锟斤拷锟斤拷锟斤拷锟街讹拷恪匡拷锟斤拷锟斤拷锟铰ｏ拷
锟斤拷锟斤拷锟饺猴拷锟斤拷锟街讹拷锟�08-07
锟斤拷锟斤拷锟斤拷锟侥诧拷锟斤拷锟斤拷锟斤拷学锟斤拷思11-22
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锟斤拷锟斤拷锟斤拷锟侥诧拷锟斤拷锟斤拷锟斤拷学锟斤拷思3篇12-17