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PHYSICS - Trial Paper Collection

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papercollection29(c)You are asked to investigate the characteristics of the four generators shown inTable 12.1 and the four rectification circuits shown in Table 12.2.Study the specifications of all the four generators and four rectification circuitsfrom the following aspects:– Number of turns of coil in the generator– Strength of the magnets in the generator– Arrangement of components in the rectification circuit– Capacitance of the capacitor in the rectification circuit.Explain the suitability of the aspects.State the most suitable generator and the most suitable rectification circuit to beused.Anda dikehendaki menyiasat ciri-ciri bagi empat penjana dalam Jadual 12.1 danempat litar rektifikasi dalam Jadual 12.2.Kaji spesifikasi bagi empat penjana dan empat litar rektifikasi dari aspek berikut:– Bilangan lilitan bagi gegelung penjana– Kekuatan magnet bagi penjana– Susunan komponen dalam litar rektifikasi– Kapasitans bagi kapasitor dalam litar rektifikasiJelaskan aspek-aspek tersebut.Nyatakan penjana yang paling sesuai dan litar rektifikasi yang paling sesuaidigunakan.[10 marks]Diagram 12.3 shows a transformer with a bulb at its output terminals. The bulblights up at normal brightness.Rajah 12.3 menunjukkan sebuah transformer dengan sebuah mentol di terminaloutputnya. Mentol itu menyala dengan kecerahan normal.I P = 0.125 A240 V12 V 24 W(i)Diagram 12.3 / Rajah 12.3State the type of transformer.Nyatakan jenis transformer itu.N P N S = 150[1 mark](ii) Determine the value of N P .Tentukan nilai N P . [2 marks](iii) Calculate the efficiency of the transformer.Hitung kecekapan transformer itu.[2 marks]END OF QUESTION PAPERKERTAS SOALAN TAMAT

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