Electromagnets
A series of free GCSE/IGCSE Physics Notes and Lessons.
Electromagnets
Describe how a current flowing through a wire generates a magnetic field.
Explain how a solenoid can increase the magnetic effect of a current.
Draw a magnetic field pattern for a straight wire carrying a current and for a solenoid.
What electromagnetism is
- How it works in wires, coils, solenoids and electromagnets
- How to increase the strength of an electromagnet
Interpret diagrams of electromagnetic devices to explain how they work: Relay, doorbell.
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