727795
Description
Mind Map by Catherine Boland , updated more than 1 year ago
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Created by Catherine Boland
about 10 years ago
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Magnets and electromagnetism
- Magnets
- Have magnetic fields
- Have 2 poles- north and south
- Have magnetic field lines
- Iron shavings test or compass test
- Iron shavings test or compass test
- Affect other magnets and magnetic materials
- Iron nickel and cobalt
- Have magnetic fields
- Hard to turn a magnet on and off
- Electromagnet
- Electric current produces magnetic field around it
- Bigger the electric current the stronger the magnetic field
- Electric current produces magnetic field around it
- Electromagnet
- A solenoid is an electric magnet
- Solenoid= coil of wire
- Strong and uniform
- Outside a solenoid, the field is like one on a bar magnet
- The ends of the solenoid act like north and south poles
- Solenoid= coil of wire
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