Learn the key concepts of Electromagnets in this IGCSE Physics lesson.
In this video, we explain how electromagnets are produced, how their strength can be changed, and how they are used in practical devices and exam-style questions.
📚 Topics covered:
What an electromagnet is
Current-carrying coils
Solenoids
Magnetic field around a coil
Using an iron core
Factors affecting electromagnet strength
Increasing the current
Increasing the number of turns
Practical applications of electromagnets
Common exam question types
Key exam tips
This lesson is ideal for students preparing for Cambridge IGCSE Physics who want to strengthen their understanding of electromagnetism and prepare for later topics such as motors, relays, and electromagnetic induction.
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