How does charging by contact using a negatively charged rod and grounding result in producing same charge in a metal sphere?

Asked by Michelle | 8th Feb, 2012, 10:35: PM

Expert Answer:

Charging by conduction involves the contact of a charged object to a neutral object. Suppose that a positively charged aluminum plate is touched to a neutral metal sphere. The neutral metal sphere becomes charged as the result of being contacted by the charged aluminum plate. Or suppose that a negatively charged metal sphere is touched to the top plate of a neutral needle electroscope. The neutral electroscope becomes charged as the result of being contacted by the metal sphere.  Each of these examples involves contact between a charged object and a neutral object.

Answered by  | 8th Feb, 2012, 10:57: PM

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