Page 50 - Hybrid PBD KSSM 2021 Tg 5 - Fizik

Fizik Tingkatan 5 Bab 5
BAB

5 Elektronik

Electronics

Peta
Penerbitan Pelangi Sdn Bhd. All Rights Reserved
FOKUS TOPIK Konsep

Sinar Katod
Cathode ray
Sinar Katod ialah alur elektron yang bergerak dalam kelajuan tinggi dalam tiub vakum.
Cathode rays are beams of electrons moving at high speed in a vacuum.
Osiloskop Sinar Katod
Cathode Ray Oscilloscope
Anod memfokus Plat-X
Focusing anode X-plate
Grid Vakum
Katod kawalan Anod memecut Vacuum
Cathode Control grid Accelerating Skrin
anode
berpendarfluor
Fluorescent
Alur elektron screen
Electron beam
Filamen Plat-Y
FIlament Y-plate
Senapang Sistem
elektron pemesongan
Electron gun Deflection system

Tenaga Keupayaan Elektrik
Elektrical potential Energy
E = eV

E = tenaga keupayaan elektrik / electrical potential energy
e = cas satu elektron / charge of an electron (1.6 × 10 C)
–19
V = beza keupayaan antara katod dengan anod pada bekalan kuasa VLT
Potential difference between the cathode and the anode of the EHT power supply
Tenaga Keupayaan Elektrik = Tenaga Kinetik Maksimum
Electrical Potential energy = Maximum Kinetic Energy
1
eV = mv 2
2 maks / max

e = cas satu elektron / charge of an electron (1.6 × 10 C)
–19
V = beza keupayaan antara katod dengan anod / potential difference between cathode and anode
m = jisim elektron / mass of electron
v maks = halaju maksimum elektron / maximum velocity of an electron

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Bab 5.indd 158 11/19/21 3:32 PM