Abstract
There are two sorts of charge, positive and negative. A polythene rod rubbed with wool becomes negatively charged, and a cellulose acetate rod rubbed with wool becomes positively charged. Like charges repel and unlike charges attract (see example 11).
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© 1990 H.J.P. Keighley
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Keighley, J. (1990). Electro-Statics and Radio-Activity. In: Work Out Physics GCSE. Macmillan Work Out. Palgrave, London. https://doi.org/10.1007/978-1-349-11839-7_13
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DOI: https://doi.org/10.1007/978-1-349-11839-7_13
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-53377-2
Online ISBN: 978-1-349-11839-7
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