Magnetism | Uses of Electromagnetism | IGCSE & O-Level Physics | Part 4 | Physics with SMS
Автор: Physics with SMS
Загружено: 2026-01-17
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Welcome to Physics with SMS ⚡🧲
In this lecture, we explain the Uses of Electromagnetism, an important topic in the IGCSE & O-Level Physics syllabus.
You will learn how electromagnetism is applied in everyday devices and how these applications are asked in Cambridge exam questions.
📘 What you’ll learn in this video:
✅ What is an electromagnet?
✅ Why electromagnets are stronger than permanent magnets
✅ Uses of electromagnetism, including:
• Electric bells and buzzers
• Relays and circuit breakers
• Loudspeakers and headphones
• DC electric motors
• Electromagnetic cranes (lifting scrap iron)
• Magnetic switches and door locks
• Electric generators (basic idea)
• Medical applications (MRI – overview)
✅ Advantages of electromagnets
• Can be switched on and off
• Strength can be varied
✅ IGCSE/O-Level exam-style questions and key points
🎯 This lesson is ideal for:
✔️ IGCSE Physics students (0625)
✔️ O-Level Physics students (5054)
✔️ GCSE Physics learners
✔️ Students revising electromagnetism applications for exams
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