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Electrical Charge (Cambridge O Level Physics)
Revision Note
Positive & Negative Charges
- Objects can be given one of two types of electric charge:
- Positive
- Negative
- When two charged objects are brought close together, there will be a force between those objects
Forces Acting on Point Charges
Like charges repel; opposite charges attract
- Remember:
- Opposite charges attract
- Like charges repel
- Electric charge is measured in units called coulombs (C)
Examiner Tip
Whilst electrostatic forces share many similarities with magnetic forces, they are different phenomena – take care not to confuse the two!
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