Page 58 - Hybrid PBD KSSM 2021 Tg 5 - Fizik

Fizik Tingkatan 5 Bab 5
2. Jadual di bawah menunjukkan hasil daripada sebuah eksperimen menggunakan transistor sebagai amplifier
arus.
Table below shows the results an experiment of using transistor as a current amplifier. SP 5.3.1 TP2
Arus tapak, I (x 10 A)
–6
Base current b 1 2 3 4 5
Arus pengumpul, I (x 10 A) 2 4 6 8 10
–3
c
Collector current
(a) Lukis graf I melawan I di ruang yang disediakan di bawah.
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b
c
Draw a graph of I against I in the space provided below.
c b
I ,×10 A
–6
c
10

8

6 Transistor
Transistor
VIDEO
4

2

I ,×10 A
–6
1 2 3 4 5 b
(b) Penggandaan amplifier, β boleh diperolehi daripada kecerunan graf I melawan I .
Amplification factor, β can be found from the gradient of the graph I against I . c b
c b
Kira penggandaan amplifier, β daripada graf di atas.
Calculate the amplification factor, β from the graph above.

Y – Y 1 (5 – 0) × 10 A
–3
2
β = kecerunan graf, m = = –6 = 5 × 10 4
gradient of graph X – X 1 (10 – 0) × 10 A
2
3. Namakan komponen-komponen di bawah. SP 5.3.2 TP1
Name the components below.
(a) (b)

Transistor / Transistor Perintang tetap / Fixed resistor

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Bab 5.indd 166 11/19/21 3:32 PM