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MODUL • Fizik TINGKATAN 5

Latihan / Exercise

1 Rajah (a) dan Rajah (b) menunjukkan susunan radas bagi mengkaji hubungan antara bilangan lilitan gegelung dawai dengan
kekuatan medan magnet di sekeliling dawai. / Diagram (a) and Diagram (b) show the set-up of the apparatus to study the relationship
between the numbers of turns of the wire coil with the strength of the magnetic field around the wire.

Gegelung dawai Gegelung dawai
Wire coil Wire coil
Kadbod Kadbod
Cardboard Cardboard

Corak serbuk
besi
Iron powder
pattern

Ammeter Ammeter
Ammeter Ammeter

Ke bekalan kuasa a.t Ke bekalan kuasa a.t
To d.c power supply To d.c power supply
Rajah (a) / Diagram (a) Rajah (b) / Diagram (b)

(a) Perhatikan Rajah (a) dan Rajah (b) dengan teliti. Lengkapkan jadual di bawah dengan membandingkan aspek-aspek yang
dinyatakan. / Observe the Diagram (a) and Diagram (b) carefully. Complete the table below by comparing the aspects mentioned. UNIT 3

Aspek / Aspect Rajah (a) / Diagram (a) Rajah (b) / Diagram (b)
UNIT 3
Bacaan ammeter Sama / Same Sama / Same
The reading of ammeter
Magnitud arus Sama / Same Sama / Same
The magnitude of current
Bilangan lilitan gegelung dawai Banyak / More Kurang / Less
The number of turns of coil wire

Susunan corak serbuk besi Lebih rapat / Closer Kurang rapat / Less closer
The arrangement pattern of iron powder
Kekuatan medan magnet di sekeliling gegelung dawai Lebih kuat / Stronger Kurang kuat / Less stronger
The strength of the magnetic field around the coil wire

(b) Seterusnya, hubung kaitkan bilangan lilitan gegelung dawai dan kekuatan medan magnet di sekeliling dawai.
Hence, relate the number of turns of coil wire and the strength of magnetic field around the wire.

Bilangan lilitan gegelung dawai semakin bertambah, kekuatan medan magnet di sekeliling dawai semakin bertambah.
As the number of turns of coil wire increases, the strength of magnetic field around the wire increases.

(c) Seterusnya, deduksikan konsep fizik yang dapat menerangkan pembentukan susunan corak serbuk besi di Rajah (a) dan
Rajah (b). / Hence, deduce the physics concept to explain the formation of the arrangement pattern of iron filings in Diagram
(a) and Diagram (b).
Elektromagnet / Electromagnet

(d) Pemboleh ubah / Variables:
(i) Dimanipulasikan / Manipulated : Bilangan lilitan gegelung dawai / Number of turns of coil wire
(ii) Bergerak balas / Responding : Kekuatan medan elektromagnet / Strength of electromagnet
(iii) Dimalarkan / Constant : Arus elektrik / Current

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