Diagram 7.1 shows the main structure of Cathode Ray Oscilloscope (C.R.O)
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Rajah 7.1 menunjukkan struktur utama Osiloskop Sinar Katod (O.S.K)
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(a)
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State the main component of C.R.O, W, as shown in diagram 7.1.
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Nyatakan komponen utama O.S.K, W seperti ditunjukkan dalam rajah 7.1
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……………………………………………………………………………………………...
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[1 mark/markah]
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(b)
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Diagram 7.2 shows the electron beam moving towards Y-plates with a positive voltage applied to the plates.
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Rajah 7.2 menunjukkan alur elektron menuju ke plat-Y yang disambungkan ke bekalan positif bekalan kuasa.
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(i)
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Complete the path of the electron beam in diagram 7.2
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Lengkapkan alur elektron pada rajah 7.2
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[1 mark/markah]
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(ii)
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State what happens to the electron beam, if
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Nyatakan apa yang akan terjadi kepada alur elektron, jika
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(a)
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voltage applied to the Y-plates increases
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voltan yang disambungkan ke plat-Y ditambah
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………………………………………………………………………………
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[1 mark/markah]
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(b)
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velocity of the electron beam increases.
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halaju alur elektron bertambah
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………………………………………………………………………………
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[1 mark/markah]
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(c)
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a negative voltage applied to the Y-plates
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voltan negatif disambungkan kepada plat-Y
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………………………………………………………………………………
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[1 mark/markah]
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