Page 627 - MODUL SPEKTRUM FIZIK SPM

6.9 Resistance/ Rintangan
Inference / Inferens:
Hypothesis / Hipotesis:
Aim / Tujuan eksperimen:
Variables/
Pembolehubah:
Apparatus / Radas dan bahan: Dry cells, constantan wire, connecting wires, ammeter, meter ruler,
Arrangement of apparatus /
Susunan radas:
Procedure / Prosedur :
Tabulate data/
Penjadualan Data:
Analyze data/ Analisa data:
The brightness of the bulb depends on the length of the wire.
Arus dipengaruhi oleh panjang dawai.
The longer the wire, the higher the resistance.
Semakin panjang dawai, semakin tinggi rintangan
To investigate the relationship between the length of a wire and
the resistance
Untuk mengkaji hubungan antara panjang dawai dan rintangan
Manipulated/dimanipulasi : length of wire/
panjang dawai, l
Responding / bergerak balas: resistance/
Rintangan, R
Fixed/ Malar : : thickness of wire/ diameter dawai
voltmeter and switch.
Sel kering, dawai konstantand, dawai penyambung, ammeter,
voltmeter, pembaris meter, suis reostat
• Measure the length of wire l= 30 cm.
• Turn on the switch and adjust the rheostat so that the ammeter
reading is I =0.5 A
• Take the reading of the voltmeter, V.
• Calculate the resistance R = V/I
• Repeat the experiment with l = 30 cm, 40 cm, 50 cm and 60
cm.
• Ukur panjang dawai l = 20 cm.
• Hidupkan suis dan laraskan rheostat sehingga bacaan
ammeter I = 0.5 A
• Ambil bacaan voltmeter, V.
• Hitung rintangan R = V/I
• Ulang eksperimen dengan panjang l = 40 cm, 60 cm, 80 cm and
100 cm.
l/cm V/V R/Ω
20
30
40
50
60
Plot graph resistance against length
Lukis graf R lawan l
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