Electric charge

4.2.1

What the syllabus asks of you

State that there are positive and negative 7 State that charge is measured in coulombs charges
State that positive charges repel other positive 8 Describe an electric field as a region in which charges, negative charges repel other negative an electric charge experiences a force charges, but positive charges attract negative charges
Describe simple experiments to show the 9 State that the direction of an electric field at a production of electrostatic charges by friction point is the direction of the force on a positive and to show the detection of electrostatic charge at that point charges
Explain that charging of solids by friction 10 Describe simple electric field patterns, including involves only a transfer of negative charge the direction of the field: (electrons) (a) around a point charge (b) around a charged conducting sphere (c) between two oppositely charged parallel conducting plates (end effects will not be examined)
Describe an experiment to distinguish between electrical conductors and insulators
Recall and use a simple electron model to explain the difference between electrical conductors and insulators and give typical examples

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Chapter 4: Electrical charge

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