1.4 (a)
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Class Experiment
Use a nanocoulombmeter to show that when you rub acetate and polythene you end up with different polarity of charges. It is also worth discussing why there is a maximum charge that you can accumilate.
Resources
Analysis
Equipment
Class set of Polythene and acetate rods, class set of dusters and a class set of nanocoulombmeters.
Safety
Demonstration
Use a free swinging charged rod and place in turn, a charged acetate and polythene rod next to it and observe attraction and repulsion.
Resources
Analysis
Equipment
1x wooden clamp stand, 1x cradle on cotton thread, 2x acetate and polythene rods, 1x duster.
