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MODUL • Fizik TINGKATAN 5

The soft iron armature restores to its original position and the circuit re-completed.
Angker besi lembut kembali ke kedudukan asal dan litar dilengkapkan semula.
(iii) Angker besi lembut ditarik oleh teras besi lembut dan pengetuk mengetuk
The soft iron armature is pulled by a soft iron core and hammer hit the bell.
Skru penyelaras sesentuh Contact adjusting screw Armatur besi lembut
The process is repeated continuously as long as the switch is pressed.
(vi) Proses ini berulang secara berterusan selagi suis masih ditekan.

The circuit is cut off, then the soft iron core is demagnetised.
Switch is pressed, the current flows through the coil wire.
Spring Springs Sesentuh Contacts Soft iron armature Penukul / Hammer

Suis tekan Push switch S N

2 Loceng elektrik / Electric bell Cara kerja / Ways it works : Suis ditekan, arus mengalir melalui gegelung dawai. Teras besi lembut dimagnetkan. The soft iron core is magnetised. loceng. (iv) Litar terputus, teras besi lembut dinyah-magnetkan. Bateri Battery Kepingan besi lembut Soft iron yoke Teras besi lembut Soft iron core Loceng / Bell

APLIKASI ELEKTROMAGNET APPLICATIONS OF ELECTROMAGNETS (i) (ii) (v) UNIT 3

UNIT 3

Fungsi: Menghidupkan atau memutuskan litar sekunder yang mempunyai arus
Function: To switch on or switch off the secondary circuit that has a large current.

Pivot / Pivot Armatur besi lembut bentuk L L-shaped soft iron armature Y Spring sesentuh Spring contacts Litar sekunder Secondary circuit Motor 'pemula' Starter motor

1 Suis Geganti / Electromagnetic Relay Cara kerja / Ways it works : Suis dihidupkan, arus mengalir melalui gegelung dawai. The switch is on, current flows through the coil wire. Teras besi lembut dimagnetkan. Soft iron core magnetised. (iii) Angker besi lembut ditarik oleh teras besi lembut. Soft iron armature is pulled by a soft iron core. (iv) Sesentuh bersentuhan. The contact touches. Litar sekunder dihidupkan. Secondary circuit is switched on. Bekalan voltan rendah Low voltage supply X Lit

yang besar.

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