锟斤拷锟斤拷锟竭旓拷(sh锟斤拷)锟斤拷電癸拷锟斤拷锟斤拷電癸拷锟斤拷計(j锟斤拷)锟姐公式锟斤拷P=W/t =UI;锟节硷拷锟斤拷锟斤拷路锟斤拷锟斤拷锟斤拷锟斤拷(j锟斤拷)锟絎姆锟斤拷锟斤拷U=IR锟斤拷锟斤拷P=UI锟斤拷還锟斤拷锟皆得碉拷锟斤拷P=I2R=(U2)/R锟斤拷

锟斤拷锟斤拷1锟竭旓拷(sh锟斤拷)锟斤拷锟斤拷計(j锟斤拷)锟姐公式

锟斤拷锟斤拷計(j锟斤拷)锟斤拷锟竭旓拷(sh锟斤拷)锟斤拷锟斤拷計(j锟斤拷)锟姐功锟斤拷锟斤拷計(j锟斤拷)锟姐公式锟斤拷P=W/t =UI;锟斤拷式锟叫碉拷P锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷位锟斤拷“锟斤拷锟斤拷”锟斤拷锟斤拷锟絈“锟斤拷”锟斤拷锟斤拷號锟斤拷W锟斤拷W锟斤拷示锟斤拷锟斤拷锟斤拷位锟斤拷“锟斤拷锟斤拷”锟斤拷锟斤拷锟絈“锟斤拷”锟斤拷锟斤拷號锟斤拷J锟斤拷t锟斤拷示锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷位锟斤拷“锟斤拷”锟斤拷锟斤拷號锟斤拷"s"锟斤拷锟斤拷锟绞撅拷锟角憋拷示锟斤拷锟絯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W(xu锟斤拷)锟斤功锟斤拷P=锟斤拷J/锟絩(sh锟斤拷)锟絞t锟斤拷锟斤拷位锟斤拷锟斤拷w锟斤拷

锟斤拷锟斤拷2锟竭旓拷(sh锟斤拷)锟酵癸拷锟绞碉拷锟絇(gu锟斤拷n)系

锟斤拷锟斤拷锟竭旓拷(sh锟斤拷)锟角癸拷锟绞的嗭拷位锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷锟絯锟节嗭拷位锟絩(sh锟斤拷)锟絞锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟侥癸拷锟侥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侥旓拷(sh锟斤拷)锟斤拷一锟斤拷锟斤拷锟絩(sh锟斤拷)锟絞越锟斤拷锟斤拷锟斤拷锟斤拷值锟斤拷越锟斤拷锟斤拷锟绞的癸拷式锟介功锟斤拷=锟斤拷/锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷锟绞憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟教度碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷位锟絩(sh锟斤拷)锟絞锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟侥癸拷锟絈锟介功锟绞ｏ拷锟斤拷P锟斤拷示锟斤拷锟绞癸拷锟绞碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟絚锟斤拷锟絯锟斤拷锟斤拷锟絚(di锟斤拷n)锟劫度的橈拷(bi锟斤拷o)锟斤拷锟絜锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絰锟斤拷锟斤拷示锟斤拷锟絯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斤拷锟斤拷锟斤拷锟絰锟斤拷锟斤拷位锟絩(sh锟斤拷)锟絞锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟侥癸拷锟叫癸拷锟斤拷锟斤拷锟斤拷锟斤拷锟角憋拷示锟斤拷锟絯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斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟絯锟斤拷锟斤拷锟侥匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絝锟斤拷锟竭旓拷(sh锟斤拷)锟斤拷(y锟斤拷ng)該锟斤拷指锟斤拷锟絯锟斤拷(sh锟斤拷)值锟斤拷“锟斤拷”锟角癸拷锟绞碉拷一锟絅锟斤拷示锟斤拷锟斤拷锟酵嗭拷位锟斤拷锟斤拷锟斤拷還锟斤拷锟斤拷锟斤拷“锟絉锟斤拷”锟斤拷锟斤拷示锟斤拷1锟絉锟斤拷=746锟斤拷=0.746千锟竭★拷

锟斤拷锟斤拷3電癸拷锟绞碉拷锟斤拷锟絇(gu锟斤拷n)計(j锟斤拷)锟姐公式

锟斤拷锟斤拷1. P=W/t 锟斤拷要锟絤锟斤拷锟斤拷锟斤拷知锟斤拷芎蜁r(sh锟斤拷)锟絞锟斤拷锟斤拷

锟斤拷锟斤拷2. P=UI 锟斤拷要锟絤锟斤拷锟斤拷锟斤拷知電夛拷锟斤拷锟斤拷锟斤拷锟斤拷锟�

锟斤拷锟斤拷3. P=U^2/R =I^2R锟斤拷要锟絤锟斤拷锟节硷拷锟斤拷锟斤拷路

锟斤拷锟斤拷一锟斤拷锟斤拷锟节诧拷聯(li锟斤拷n)锟铰凤拷锟诫妷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷(g锟斤拷)變锟斤拷锟斤拷锟诫姽锟斤拷锟�

锟斤拷锟斤拷4.P=I^2R 锟斤拷要锟斤拷锟节硷拷锟斤拷锟斤拷路

锟斤拷锟斤拷一锟斤拷锟斤拷锟节达拷聯(li锟斤拷n)锟铰凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟�(g锟斤拷)變锟斤拷锟斤拷锟诫姽锟斤拷锟�

锟斤拷锟斤拷5.P=n/Nt 锟斤拷要锟絤锟斤拷锟斤拷锟斤拷锟斤拷鼙锟斤拷锟界姳锟斤拷锟斤拷電癸拷锟斤拷

锟斤拷锟斤拷t-----锟斤拷锟斤拷锟斤拷为锟�(d锟斤拷)锟斤拷锟斤拷锟侥時(sh锟斤拷)锟絞锟斤拷锟斤拷位锟斤拷小锟絩(sh锟斤拷)

锟斤拷锟斤拷n----锟斤拷锟斤拷锟斤拷为锟�(d锟斤拷)锟斤拷锟斤拷 t 锟絩(sh锟斤拷)锟絞锟斤拷(n锟斤拷i)锟斤拷鼙锟斤拷D(zhu锟斤拷n)锟絇锟紻(zhu锟斤拷n)锟絕锟斤拷锟紻(zhu锟斤拷n)锟斤拷(sh锟斤拷)

锟斤拷锟斤拷N----锟斤拷鼙锟斤拷锟斤拷锟斤拷每锟斤拷锟斤拷 1 千锟竭時(sh锟斤拷)锟斤拷鼙锟斤拷D(zhu锟斤拷n)锟絇锟紻(zhu锟斤拷n)锟絕锟斤拷锟紻(zhu锟斤拷n)锟斤拷(sh锟斤拷)

锟斤拷锟斤拷6.锟斤拷锟绞的憋拷锟斤拷锟絇(gu锟斤拷n)系

锟斤拷锟斤拷锟斤拷聯(li锟斤拷n)锟铰凤拷锟絇/P'=R/R' P锟斤拷=P'*P''/P'+P"锟斤拷聯(li锟斤拷n)锟铰凤拷锟絇/P'=R'/R P锟斤拷=P'+P"

锟斤拷锟斤拷锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷锟斤拷知锟絉锟絚(di锟斤拷n)锟絉锟斤拷

锟斤拷锟斤拷锟斤拷小锟侥嗭拷位锟角匡拷锟竭�锟角納锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

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