Pengesan sinaran elektromagnet digunakan untuk mengesan dan mengukur kehadiran medan elektromagnet (EMF) yang dihasilkan oleh peralatan elektrik dan pendawaian.
An electromagnetic radiation detector is used to detect and measure the presence of electromagnetic fields (EMF) produced by electrical devices and wiring.
👀 What Can We Learn From This Photo?
✅ The detector is placed near a wall switch and an electronic fan regulator.
✅ Pengesan diletakkan berhampiran suis dinding dan pengawal kelajuan kipas elektronik.
✅ The display shows a reading of 1084.
✅ Paparan menunjukkan bacaan 1084.
✅ The alarm indicator is illuminated, indicating a relatively strong electromagnetic field at that location.
✅ Lampu amaran menyala, menunjukkan medan elektromagnet yang agak kuat di kawasan tersebut.
✅ Electrical wiring hidden behind walls can also generate electromagnetic fields.
✅ Pendawaian elektrik yang tersembunyi di dalam dinding juga boleh menghasilkan medan elektromagnet.
🔬 Physics Behind It
Whenever an electric current flows through a wire, a magnetic field is produced around the conductor.
Apabila arus elektrik mengalir melalui wayar, medan magnet akan terhasil di sekeliling konduktor.
The larger the current, the stronger the magnetic field.
Semakin besar arus, semakin kuat medan magnet yang terhasil.
This is one of the fundamental principles of electromagnetism.
Inilah salah satu prinsip asas elektromagnetisme.
🎯 SPM Physics Connection
📌 An electric current produces a magnetic field.
📌 Arus elektrik menghasilkan medan magnet.
📌 This principle is used in:
📌 Prinsip ini digunakan dalam:
✅ Elektromagnet
✅ Motor Elektrik
✅ Transformer
✅ Pembesar Suara
✨ AHA Moment
We cannot see electromagnetic fields with our eyes.
Yet right now, around every switched-on wire, charger, fan and appliance, invisible fields are quietly at work.
Physics is often about making the invisible visible. ⚡📡
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