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MODUL • Fizik TINGKATAN 5

V
(ii) Rintangan R ditentukan oleh R = I . Kira nilai R apabila I = 0.80 A.
V
The resistance R is given by R = . Calculate the value of R when I = 0.80 A.
I
(d) Nyatakan satu langkah berjaga-jaga yang perlu diambil semasa eksperimen ini dijalankan.
State one precaution that should be taken during this experiment.
Penyelesaian
Solution
(a) (i) Apabila I meningkat, V berkurang. V / V
When I increases, V decreases.
1.5

1.0

0.5
UNIT 2

I / A
UNIT 2
0 0.2 0.4 0.6 0.8 1.0 1.2

(ii) Berdasarkan ekstrapolasi pada graf, apabila I = 0.0 A, V = 1.5 V
Based on extrapolation of the graph, when I = 0.0 A, V = 1.5 V

(iii) Daya gerak elektrik, E / Electromotive force, E
(b) r = –m
= – 1.5 V – 1.0 V
(0 – 1.0) A
= 0.5 Ω
(c) (i) Daripada graf, apabila I = 0.8 A,V = 1.1 V / From the graph, when I = 0.8 A, V = 1.1 V
1.1 V
(ii) R =
0.8 A
= 1.38 Ω

(d) Betulkan ralat sifar bagi voltmeter dan ammeter
Correct zero errors in the voltmeter and ammeter

atau / or
Elakkan ralat paralaks semasa mengambil bacaan voltmeter dan ammeter
Avoid parallax errors when taking the voltmeter and ammeter readings

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