Sumber Arus Searah dari Tegangan Listrik Searah dan Bolak-

171 Listrik Dinamis Gambar 8.3 Mengukur kuat arus listrik

3. Mengukur Kuat Arus

+=BC: 4=6C:C :C0B 0CA ;8AB8: 30;0 AC0BC 0=6:080= ;8AB8: 386C=0:0=0?444B40B0C04B44=6C:C0=0CA;8AB8:30;0AC0BC ?4=670=B030?0B38;0:C:0=34=60=2004=67C1C=6:0=0;0BC:C0CA ;8AB8:0?444B4A4200A48A4?4B8?030.2 0041020A:0;00?444B4030;07A410608148:CB 0A8;?4=6C:C0= A:0;0F0=638BC=9C: L10B0AC:C A:0;00:A8C K 058:148:CB4=C=9C::0=:C0B0CAF0=64=60;830;0AC0BC0=6:080=B4BCBC? 430A0:0=6058:B4A41CBB4=BC:0=10=F0:=F0 C0B0=;8AB8:F0=64=60;830;00=6:080= A4;00A?4B0030;0A0BC0=2C;C1 7 I 082 A0?08 2 A38?4;47 2 K A0CA?030A4;0=6E0:BC8=8 14B0107A4200;8=408;080B00B0=F0 030;07A410608148:CB 8;010B8CA4:;07180A0=F0386C=0:0=0?444B4C=BC:4=6C:C:C0B0CA 030AC0BC?4=6C:C0=0CA;8AB8:3830?0B30B0A4?4B838BC=9C::0=?0306010148:CB 4=BC:0=70A8;?4=6C:C0=0?444B4B4A41CB Contoh 8.2 Contoh 8.3 0202 C;07C0B0==F0 2 A I 082AA0?082A38?4;47 2 AKA ACA?030A4;0=6E0:BC 8=8B4B0? C;07C0B0==F0 2 A 0389C;07C0B0=F0=64=60;84;0;C80=6:080=A4;00A030;07

4. Mengukur Beda Potensial

+=BC:4=6C:C14A01430?B4=A80;0B0CB460=60=380=B00C9C=6C9C=6 ?4=670=B0386C=0:0=D;B4B4F0=6380=6:08:0=A4?4B8?030.2 Gambar 8.4 Cara mengukur beda potensial. voltmeter P Q lampu arus listrik baterai + – arus listrik lampu P Q voltmeter baterai × V – + sumber tegangan lampu amperemeter A A 038C0B0=F0=638?8=307:0=030;07 A0B0C 70 100 0,5 A 7 =50A8F0=638?4;473086010B4A41CBF08BCA:0;0 F0=638BC=9C: A:0;00:A8C 10B0AC:C0= 0A8;?4=6C:C0= L 03870A8;?4=6C:C0==F0 IA ts 6 4 2 2 4 172 Mudah dan Aktif Belajar Fisika untuk Kelas X Tes Kompetensi Subbab A 2+,--.5,5-4 4;0A:0=F0=638A41CB34=60= 0 ;8AB8:AB0B8A 1 ;8AB8:38=08A 058:148:CB4=C=9C::0=:C0B0CAF0=64=60;8 30;07010B0=A4106085C=6A8E0:BC 4=BC:0=10=F0:=F0C0B0=;8AB8:F0=64=60;8 30;07010B0=A4;00A 0;0AC0BC0=6:080=;8AB8:4=60;80CA;8AB8: A414A0 A4;004=8B40?0C0B0=F0=6 4=60;830;00=6:080=B4A41CB 8:0A41C074;4:B=48;8:8C0B0= L 140?0 10=F0:4;4:B=F0=64=60;830;0A41C07:0E0B ?4=670=B0F0=6380;880CA;8AB8: A4;00A 41C070?444B434=60=10B0AC:C 30=A:0;0 386C=0:0=C=BC:4=6C:C:C0B0CAF0=64=60;8 30;0AC0BC0=6:080=;8AB8:030A00B?4=6C:C0= 90C0?444B44=C=9C::0=0=6:0 B4=BC:0= 14A0:C0B0CA?030?4=6C:C0=8=8 4=BC:0=70A8;?4=6C:C0=148:CB 1 ,;B4B438ACAC=?00;4;A4909034=60=AC14;8AB8:0B0C?40;0B0= ;8AB8:F0=60:0=38C:C1430?B4=A80;=F0 030D;B4B4B430?0B3C01C07:CBC1F08BC:CBC1?A8B8530=:CBC1 =460B85CBC1:CBC18=870CA387C1C=6:0=A420014A4AC080=34=60= :CBC1:CBC1?0300=6:080=

B. Hukum Ohm dan Hambatan

030AC1101=30B4;074?4;0908:=A4?0CA30=B460=60= A4B0 200 ?4=6C:C0==F0 030 AC1101 8=8 =30 0:0= 4?4;0908 7C:C730=7010B0=06080=07C1C=60=0=B00B460=60=0CA ;8AB8:30=7010B0=C:C70:0=41070A7C1C=60=B4A41CB 414;C4?4;09081018=8;418790C7;0:C:0=:4680B0=148:CB Aktivitas Fisika 8.1 IA ts 2 1 3 6 8 hambatan geser hambatan tetap tegangan sumber A V Tujuan Mengetahui hubungan antara tegangan dan arus listrik. Alat-Alat Percobaan 1. Dua buah baterai 2. Hambatan tetap 3. hambatan geser hambatan yang dapat diubah-ubah 4. Amperemeter DC 5. Voltmeter DC terminal negatif terminal 0,6 A 1 2 3 3 A 0,6 A – 1 2 3 0,2 0,4 0,6 A terminal negatif terminal 3 A 1 2 3 0,6 0,4 0,2 A 3 A 0,6 A – 1 2 3 Kata Kunci • arus listrik • elektron • beda potensial • amperemeter • voltmeter Langkah-Langkah Percobaan 1. Susunlah semua peralatan seperti pada gambar. Hubungan Tegangan dan Arus Listrik