191
Listrik Dinamis
2 I =
14640:4=C9C:41A478=660B4903840:A8 1
K
1 4
K
4?8=619C6014C1074=9038B810;AC;50B1 43C040:A8B4A41CBB4CA14;0=9CBA0?08:43C04;4:B304=9038
B810;AC;50B4B4;07:40300=8=8B420?08B830:030;0680;80=4;4:B= B830: 030 0CA F0=6 4=60;84=60= 348:80= 0:CC;0B B830:
145C=6A8;068 ,5.5-402,-.5.
0300:CC;0B8=81070=4;4:B;8BF0=6386C=0:0=030;07:0;8C 783:A830CBC1?A8B85=F0 030;07=8:4;30=:CBC1=460B85=F0 030;07
20?C0=;60:038C:CC;0B=8:4;:038C10=F0:381C0B 34=60=14=BC:A4?4B84;44=:48=6 B4B0?87060=F090C7;4187070;
308?03010B408180A04C=BC=60==F080;0730?0B38;0:C:0=?4=68A80=C;0=6 30=38A8?0=;00
Tes Kompetensi Subbab
E
2+,--.5,5-4 41CB:0=AC14AC140CA;8AB8:
?0 F0=6 380:AC3 4;44= ?84 30= 4;44= A4:C=3441CB:0=2=B72=B7=F0
C;8A:0=40:0A8:880F0=6B490383830;04;44=,;B0 4;0A:0=F0=6380:AC3?A4A?4=68A80=30=?A4A
?4=66C=00=0:CC;0B C;8A:0=40:A8:880F0=6B4903838:0B3430=38
0=34?030?A4A?4=68A80=0:CC;0B
F. Tegangan Listrik Searah dan Bolak-Balik
1. Energi Listrik
=30B4;074=64B07C8107E00CA;8AB8:4=60;8308?B4=A80; B8=668:4?B4=A80;F0=6;41874=3074;08=8BC4;4:B=A410608?410E0
C0B0=;8AB8:44;C:0=4=468C=BC:14?8=307F0:=84=468?B4=A80; F0=614A0=F0C0B0=38:0;8?B4=A80;;8AB8:=F0
.
;47:04=08BC4=468;8AB8:030;07CA070C=BC:48=307:0= C0B0=;8AB8:B4A41CB4A0=F04=468;8AB8:B4A41CB030;07
.
K
.
K K
2 0B0C
K 2
030;0714A04=468;8AB8:030;07B460=60=030;07:C0B0CA ;8AB8:30=2030;07E0:BC 8:04=AC1AB8BCA8:0= ?4A000=
K
4=9038 K
K
Kata Kunci
• proses kimiawi
• elektromagnetik
• termoelektrik
• fotolistrik
• piezoelektrik
• elemen primer
• elemen sekunder
I =
q J
maka q = I t
Ingatlah
Di unduh dari : Bukupaket.com
192
Mudah dan Aktif Belajar Fisika untuk Kelas X
2 0B0C
41C071;0;0?C34=60=A?4A858:0A8
- ,38?0A0=6?0301430?B4=A80; ,30=38=F0;0:0=A4;00
4=8B8BC=64=468;8AB8:F0=6B4?0:08;0?C
B4A41CB 7
8:4B07C8 ,
, -
2
4=8B A 010B0=;0?C380=660?:=AB0=A478=660
0:0
L ,
L
- ,
- 2- A
L
0384=468;8AB8:F0=6B4?0:08
L
4B40=60= 4=468;8AB8:
1430?B4=A80;, :C0B0CA
7010B0= 2 A4;0=6E0BCA
30?C=30F0;8AB8:030;079C;074=468?4A0BC0=E0:BC0F0 ;8AB8:30?0B3878BC=634=60=CCACCAA410608148:CB
K
0B0C K
;0B0;0B?40=0AF0=610=F0:389C?084C?0:0=:41CBC70=CB00 30;0:4783C?0=0=CA80A4?4B8A4B8:0B4:;8AB8:30=0--0=468
;8AB8:F0=63870A8;:0=;474;44=?40=0A;8AB8:B4A41CBA4;002A4:= A414A024C380=4=468B4A41CB38C1074=90384=468:0;
A414A0+ 42000B40B8A?4C1070=4=468;8AB8:4=9038
4=468:0;B4A41CB30?0B38BC;8A:0=A410608148:CB
2+ 4B40=60=
+ 0AA008:6 :0;94=8A08
:6H
:4=08:0=AC7C08H 0B0B0=23.9
14;0:C98:0B830:B49038?4C1070=EC9C3
208A414;CB49038?4=6C0?0=
Contoh
8.15
K
Tokoh
Alessandro Volta
, adalah Fisikawan yang dilahirkan di Como, Italia. Dia
menciptakan electrophorus, yaitu suatu alat untuk membangkitkan
listrik statis pada 1775 dan menemukan gas metana pada 1778.
Dia ditetapkan sebagai profesor untuk filsuf ilmu alam di Pavia.
Terinspirasi oleh temannya Luigi Galvani
, Volta menemukan bahwa
arus listrik dibangkitkan ketika dua logam berbeda berada pada jarak
yang sangat dekat, dan mengembangkan baterai listrik
pertama pada 1800. Namanya diabadikan untuk satuan beda
potensial listrik, volt.
Sumber :
www.allbiographies.com
Sumber:
www.physics. com.
Alessandro Volta
1745 – 1827
Di unduh dari : Bukupaket.com
193
Listrik Dinamis
=30B4;074?4;09080CA;8AB8:A4007B460=60=;8AB8:A4007 30=AC140CA;8AB8:A4007A4B00=6:080=A43470=0B43880B0A10B408
78=66038?4;47=8;0830=F0=638A41CB34=60=0=6:080=0CAA4007 CA30=B460=60=;8AB8:1;0:10;8:48;8:8=8;08F0=6A4;0;C14
C107C107B47030?E0:BCA4200?4838:108:14A00C?C=007=F0 4A00=0CA30=B460=60=1;0:10;8:38;010=6:0=34=60=
A430=6:0=0CA30=B460=60=A400738;010=6:0=34=60= 4E0A0
8=870?8A4C0?40;0B0=C07B0=66038?40A8:0=34=60=4=468 ;8AB8:0CA1;0:10;8:A4?4B8B0?0:?030.2 =30B4;07
4=64B07C8107E0?414300=4=30A00=B000CA1;0:10;8:30=0CA A4007030;07?;08B0A=F0
+=BC:4=64B07C8?;08B0A0CA30=B460=60=A4007F0=6A4;0;CB4B0? 30=0CA1;0:10;8:F0=6A4;0;C14C10730?0B386C=0:0=A8;A:?8A0;=F0
2-61-1-.4;0;C80;0B8=89C603800B8=8;0854 :C4=A830=14=BC:64;10=6F0=63870A8;:0=A430=6:0=C=BC:4=6
C:C=8;08B460=60=30=:C0B0CA;8AB8:30?0B386C=0:0=D;B4B4 30=0?444B4
2. Mengamati Tegangan Listrik DC dan Tegangan Listrik AC