IGCSE Physics / Magnetism and electromagnetism

Coils, solenoids and electromagnets revision notes

Edexcel International GCSE Physics (4PH1), chapter 20: Magnetism and electromagnetism, specification point 6.10P, 6.9P. Part of the full course.

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A coil or solenoid produces a magnetic field, and adding a soft iron core makes an electromagnet. You can strengthen an electromagnet by changing the coil or current, and switch it off by stopping the current.

More lessons in Magnetism and electromagnetism

• Magnets and magnetic materials
• Magnetically hard and soft materials
• Magnetic fields and field lines
• Making a uniform magnetic field
• The magnetic field around a wire
• The force on a charged particle in a magnetic field