17. اﻷول اﻟﻔﺼﻞ:اﻟﻤﺘﺴﻌﺎتCapacitorsاﻟﻤﺪرس اﻋﺪاد:ﺗﻮﻣﺎن ﻣﺤﻲ ﺳﻌﻴﺪ
-18-
اﻻول اﻟﻔﺼﻞ ﻗﻮاﻧﻴﻦ
اوﻻ:واﺣﺪة ﻣﺘﺴﻌﺔ
♦ﻫﻮاء او ﻓﺮاغ اﻟﻌﺎزل ﻛﺎن اذا)اﻟﻌﺎزل ادﺧﺎل ﻗﺒﻞ(:
,
♦اﻟﻬﻮاء او اﻟﻔﺮاغ ﻏﻴﺮ اﻟﻌﺎزل ﻛﺎن اذا)اﻟﻌﺎزل ادﺧﺎل ﺑﻌﺪ(:
1(اﻟﻘﻮاﻧﻴﻦ:
,
2(اﻟﻌﻼﻗﺎت:
ﺑﺎﻟﻤﺼﺪر ﻣﺘﺼﻠﺔ اﻟﻤﺘﺴﻌﺔ ﻛﺎﻧﺖ اذااﻟﻤﺼﺪر ﻋﻦ ﻣﻨﻔﺼﻠﺔ اﻟﻤﺘﺴﻌﺔ ﻛﺎﻧﺖ اذا
CkCk =CkCk =
QkQk =QQk =
VVk ∆=∆
k
V
Vk
∆
=∆
EEk =
k
E
Ek =
PEkPEk =
k
PE
PEk =
ﻣﺘﻮاﻟﻴﺔ او ﻣﺘﻮازﻳﺔ ﻣﺘﺴﻌﺎت ﻣﺠﻤﻮﻋﺔوﻣﺘﻮاﻟﻴﺔ ﻣﺘﻮازﻳﺔ او)ﻣﺨﺘﻠﻂ(:
اوﻻ:اﻟﻘﻮاﻧﻴﻦ:
ﻛﺎن اذاﻫﻮاء او ﻓﺮاغ اﻟﻌﺎزل)اﻟﻌﺎزل ادﺧﺎل ﻗﺒﻞ(:
eq
2
T
T
2
TeqTTTT
C
Q
.
2
1
PEor)V.(C
2
1
PEorQ.V
2
1
PE =∆=∆=
T
T
eq
V
Q
C
∆
=
k
2
k
k
2
kkkkkk
C
Q
.
2
1
PEor)V.(C
2
1
PEorQ.V
2
1
PE =∆=∆=
d
V
E k
k
∆
=d
A
kCor
V
Q
C k
k
k
k οε=
∆
=
C
Q
.
2
1
PEor)V.(C
2
1
PEorQ.V
2
1
PE
2
2
=∆=∆=
d
V
E
∆
=
d
A
Cor
V
Q
C οε=
∆
=
19. اﻷول اﻟﻔﺼﻞ:اﻟﻤﺘﺴﻌﺎتCapacitorsاﻟﻤﺪرس اﻋﺪاد:ﺗﻮﻣﺎن ﻣﺤﻲ ﺳﻌﻴﺪ
-20-
اﻟﻤﺘﺴﻌﺔ وﺗﻔﺮﻳﻎ ﺷﺤﻦ:
اوﻻ:اﻟﻤﻔﺘﺎح ﻏﻠﻖ ﻟﺤﻈﺔ
0PE,0E,0V,0Q
R
V
I,VV
C
battery
batteryR
===∆=
∆
=∆=∆
ﺛﺎﻧﻴﺎ:اﻟﻤﺘﺴﻌﺔ ﺷﺤﻦ اﺗﻤﺎم ﺑﻌﺪ:
C
Q
2
1
PEor)V.(C
2
1
PEorQ.V
2
1
PE
,
d
V
E,V.CQ,VV
0I,0V
2
2
C
C
CbatteryC
R
=∆=∆=
∆
=∆=∆=∆
==∆
ﺛﺎﻧﻴﺎ:اﻵﺗﻴﺔ اﻟﻌﻼﻗﺔ ﻣﻦ ﻳﺤﺴﺐ اﻟﺘﻔﺮﻳﻎ ﺗﻴﺎر:
R
V
I C∆
=