الذهبيه - فيزياء
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ϴ Ϡ 㤷 R R R R 㤷 R<br />
맨ᕩ 冐<br />
ᕩ 맨 冐 맨 R 횠 Ύo Α 冐 맨o Α = 26 μF, C = 18 μF Ṧ 冐 oᕩ 맨 冐 맨 Ṧ 冐 ɖṦ൴Ϙ맨 o Α 冐 Ύ 冐 Α /<br />
C1<br />
2<br />
Ṧo 횠맨ᕩ o m 맨ᕩ 맨 Α Α 맨맨 ᕩ맨 o 0 ν 횠Ṧ맨똨Ύ Ṧo 횠 맨 o 똨o 맨똨Ύ Ṧo 똨o 횠 冐 맨 Α<br />
mΑ Α 300μC 맨 R맨 ṦR 맨 RɖϮ맨 Β o 똨맨맨 o RϘ 冐 Α 맨 맨 맨 ᕩ Α 맨 Ύ 冐 맨 冐 ɖṦ൴ 䁀<br />
. 맨ᕩ Ύ맨 맨 맨 ᕩ맨 Ύo Ύ 冐 Α 맨 冐 ɖṦ൴ 䁀 Α Βᕩ 冐 m 맨 RɖϮ맨 2 . ᕩ Ύ맨 o m 1<br />
1 Q = 300μC , ΔV = 0 ν<br />
t k<br />
Q<br />
t K 300<br />
C = = = ᕪ0μF<br />
eq K<br />
ΔV 0<br />
C = C +C ⇒ C = C -C = ᕪ0 - 18 = 2μF<br />
eq K 1K 2<br />
1K eq 2<br />
CK 1 2<br />
K = = = 2<br />
C 26<br />
1<br />
2 Q = ΔV .C = 0 × 2 = 2600μc<br />
1K<br />
1K<br />
Q = ΔV .C = 0 ×18 = 900μc<br />
2<br />
2<br />
/<br />
ᦙϠ 㤷 R R 㤷 R<br />
맨ᕩ 冐<br />
C1= 12μf ,C2<br />
= 6μf<br />
ṦR맨 RɖϮo 횠 冐 맨 Α RɖΗ o ᕩ 맨 冐 맨 R 횠 Ύo Α 冐 맨o Α 冐 Ύ 冐 Α /<br />
R RϘ m 冐 맨 Ṧ똨맨맨൴R맨 ϘΑ 똨맨o<br />
180μc<br />
. 횠Ṧ 冐 ɖṦ൴ 䁀 Ṧo Ύ o 횠 맨 맨 Βᕩ 冐 m 맨 Ύ 똨맨 횠Ṧ 冐 ɖṦ൴ 䁀 Α Βᕩ 冐 m 맨 RɖϮ맨 mΑ Ύ 冐 Α 맨 o -1<br />
Βᕩ 冐 m 맨 RɖϮ맨 mΑ ṦΒ ᕩ맨 Ύ 冐 맨 冐 ɖṦ൴ 䁀 Ṧo 4 맨ᕩ o m ṦΎ o 횠맨 맨ᕩ 맨 Α Α 맨맨 ᕩ맨 -2<br />
. ᕩ Ύ맨 ᕩ맨 Ύo Ύ 冐 Α 맨 횠o 冐 ɖṦ൴ 䁀 Α<br />
Qt<br />
180<br />
1 Ceq = C1<br />
+C2= 12 + 6 = 18μF , ΔVt=<br />
= = 10 ν = ΔV1= ΔV<br />
Ceq<br />
18<br />
Q1=C1.ΔV = 12 ×10 = 120μC , Q2=C2.ΔV = 6 ×10 = 60μC<br />
1 1<br />
-6<br />
-6<br />
PE1=<br />
ΔV.Q1=<br />
×10 ×10 ×120 = 600 ×10 J<br />
2 2<br />
1 1<br />
-6<br />
-6<br />
PE2=<br />
ΔV.Q 2=<br />
×10 ×10 × 60 = 300 ×10 J<br />
2 2<br />
2 Ck 2=C2.k<br />
= 6 × 4 = 24μF , Ceq<br />
=C1+CK 2= 12 + 24 = 36μF<br />
Q 180<br />
t<br />
Q = 180μC 맨맨Ϙ൴Α Ύ 冐 맨 , ΔV = = = ν = ΔV = ΔV<br />
t<br />
t<br />
1<br />
2<br />
C 36<br />
eq<br />
Q = ΔV.C = × 24 = 120μC , Q = ΔV × C = ×12 = 60μC<br />
K 2<br />
K 2<br />
1<br />
1<br />
2