Page 626 - MODUL SPEKTRUM FIZIK SPM

6.8 Resistance/ Rintangan SPM 2015
Inference / Inferens:
Hypothesis / Hipotesis:
Aim / Tujuan eksperimen:
Variables/
Pembolehubah:
Apparatus / Radas dan bahan: Constantan of varying diameters(s.w.g 26,s.w.g 28, s.w.g.30,
Arrangement of apparatus /
Susunan radas:
Procedure / Prosedur :
Tabulate data/
Penjadualan Data:
Analyze data/ Analisa data:
The brightness of light bulb depends on the diameter of the wire
Kecerahan mentol bergantung kepada diameter wayar
The greater the diameter of wire, the lower the resistance.
Semakin besar diameter wayar, semakin rendah rintangan
To study the relationship between the diameter of a wire and the
resistance.
Untuk mengkaji hubungan antara diameter wayar
dan rintangan
Manipulated/dimanipulasi : diameter of wire / diameter
wayar, d
Responding / bergerak balas: resistance/
rintangan, R
Fixed/ Malar : length of wire/ panjang wayar
s.w.g 32 and s.w.g 34), dry cells, ammeter and voltmeter
Dawai konstantan sepanjang 30 cm dengan pelbagai diameter
(s.w.g 26,s.w.g 28, s.w.g.30,
s.w.g 32 and s.w.g 34), sel kering, ammeter dan voltmeter
• A constantan wire s.w.g 26 is connected across terminal X and Y
• The switch is closed and the rheostat is adjusted so the
current, I = 0.5 A.
• Take reading of the voltmeter.
• Calculate the resistance R = V/I
• The experiment is repeated with constantan wires s.w.g
28,s.w.g 30, s.w.g 32 and s.w.g 34.
Diameter,d Current, I/A R = V/I (Ω)
Arus I/A
s.w.g. 24
s.w.g.28
s.w.g.30
s.w.g.32
s.w.g.34
625