capasitor b inggris
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BY:
RIKA J. MANURUNG
SENTRA D. GINTING
SITI M. SARITANTI M. BUTAR-BUTAR
YOSUA A. BANUAREA
CAPASITOR
E L - 2
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E L 2
As we know capasitor is an elektric komponent,the symbol of capasitor is C. This komponent hasfound by michael faraday. So the value of thiskomponet in farad.
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And now we will present aboutKind of capasitorCharacteristik of capasitorFunctionDielectrik materialCapasitansiSeries circuit of capasitorParallel circuit of capasitor
Relation voltage and capasitansiElektrik energy And visual practice of capasitor.
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Characteristic of capasitor -Can save electric energywithout chemistryreaction-Cant be passed by DC
electric current, but canbe passed easily by ACelectric current-If it is related withdifferent electric
potential, each platecarries equal amount ofcharge. One plate carriespositive charge and theother caries negativecharge.
Symbol of capasitor
+V
+Q -Q
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A capasitor consist of two parallelconducting plate, each of area A,that separated by dielectricmaterial/isolator/ vaccum
Between two plate are related withdifferent electric potential V.Each plate carries equal amount of
charge. One plate carries positivecharge and the other cariesnegative charge.
Dielectric materials
Area =A
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Capasitance of capasitor
(C) shows the amount ofcharge in each plate, ifboth of them havedifferent electric potential1 volt
+V
+Q -Q
V
VQ
C Q = the amount of charge in each plateV = different electric potential between two plates(Volt)C = Capasitance of capasitor (Farad = F )
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vaccum
Area =A
VQC
dxA
C o
C = capasitanceof capasitor(Farad= F)
d = distance(meter)
A = surface area(meter 2 )
o = permitivitas udara atau ruang hampa( 8 .854 187 82 10 -12 C/vm )
dA Q
Q
Exd
QC
o
x
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Series circuit
+V
+Q 1 -Q 1 +Q 2 -Q 2
1. Capasitance of capasitor (C g ),
Capasitance of 1 st capasitor (C 1),Capasitance of 2 nd capasitor (C 2) is:
2. The charge that is kept in circuit= thecharge in each capasitor.Q = Q 1 + Q 2 dan Q 1 = Q 2
3. Electric potential(V), potential at 1 st capasitor (V 1 ) and 2 nd capasitor (V 2 )is:V = V 1 + V 2
21g C1
C1
C1
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Series Circuit
+V = 6 volt
+Q -Q +Q -Q
C1 = 2 F C 2 = 3 F
Example:
1. Kapasitance of capasitor :
C g = 6/5 = 1,2 F
2. The charge in the circuit= 1,2 F x 6V = 7,2 C1 st capasitor = 7,2 C2nd capasitor = 7,2 C
3. Electric potential:1 st capasitor = 3,6 V2nd capasitor = 2,4 V
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Paralel Circuit
+V
+Q 1 -Q 1
+Q 2 -Q 2
1) Potential at 1 st capasitor (V 1), 2 nd capasitor (V 2) and at the sourcepotential (V) is V 1 = V 2 = V
2) The charge that is kept in the circuit isQ = Q 1 + Q 2
3) Capasitance of union of capasitor is:Cg = C 1 + C 2
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Paralel Circuit 1. Each capasitor has samepotential, then we getV1 = V2 = 6 volt
2. Capasitance of capasitor is
C g = C 1 + C 2 = 2 F + 3 F = 5 F
3. The charges that are kept in thecircuit are:Q = C g xV = 5 F x 6V = 30 C
Q1 = C 1 x V = 2 Fx6V = 12 CQ2 = C 2 x V = 3 Fx6V = 18 C
Example:
+
+Q 1 -Q 1
+Q 2 -Q 2
C1 = 2 F
C2 = 3 F
V = 6 volt
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The Graphics of relation the voltage (V) with the charges in capasitor(Q)
Electric energy in capasitor that hascharge Q = surface area under curva graphics Q-V (thehatching ).
Q
V
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(CV)V21
W
+V
A capasitor has capasitance C is connected with voltage V.
because Q = C.V, so
2
CV21
W
W = electric energy in capasitor (Joule)
Q = Charge in capasitor (Coulomb)
C = Capasitance of capasitor (farad)
V = Voltage between parallelplate capasitor (Volt)
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Click this!!!!
http://d/fisika/capacitor-lab_en.jar -
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Ok to make this presentation be perfercf we willmake dialog about this topic, you can give aquestion to as and one session we chose 3people,
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