7 • Point Discharge
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6 Terms
1
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Define Point Discharge
The ability of charge to leak away from an insulated charge surface through a sharp point
2
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Demonstrate Point Discharge • 1
Large charge density at the point
Strong electric field around the point
3
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Demonstrate Point Discharge • 2
Ions in air are attracted or
repelled from the point
Opposite charge ions neutralise the charge on the point
4
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Name an example of point discharge
Electric wind
5
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Demonstrate Electric Wind
Produced by ions steaming away from the highly charged point
6
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Explain how a lightning conductor works
Point discharge transfers charge to ground
Note 
Flashcards (124)