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Practice | SPM Mathematics

SPM 1449 Mathematics (KSSM)

Question
Bahasa Melayu
Rintangan elektrik, R ohm, bagi seutas dawai berubah secara langsung dengan panjangnya, L meter, dan secara songsang dengan luas keratan rentasnya, A mm^2. Diberi bahawa R = 12 apabila L = 30 dan A = 2.
Tulis hubungan antara R, L dan A sebagai satu persamaan, dengan menggunakan k sebagai pemalar ubahan. Jangan cari nilai k.

English
The electrical resistance, R ohms, of a wire varies directly as its length, L metres, and inversely as its cross-sectional area, A mm^2. It is given that R = 12 when L = 30 and A = 2.
Write the relation between R, L and A as an equation, using k as the constant of variation. Do not find k.
[1 mark]
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Modelled on PINTAS trial 2026 · Kertas 2 · Q7(a)

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Modelled on PINTAS trial 2026 · Kertas 2 · Q7(a)
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