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in charging a metal sphere negatively by induction ,by bringing a positively charged rod near it. in this case the electrons will flow from the ground to the sphere when the sphere is conneccted to the ground with a wire. can you explain why?

in charging a metal sphere negatively by induction ,by bringing a positively charged rod near it. in this case the electrons will flow from the ground to the sphere when the sphere is conneccted to the ground with a wire. can you explain why?
 

Grade:12

2 Answers

Kardam Pandey
11 Points
7 years ago
When we charge a metal sphere negatively by bringing a positively charged rod near its left surface, the electrons get attracted towards the left side and positive charges on right side. Now, when the sphere is earthed the electrons from earth flow to the sphere to neutralise the positive charge collected on the right side. Now, when the positively charged rod is removed the negative charges get distributed over the metal surface and the sphere gets negatively charged.
ankit singh
askIITians Faculty 614 Points
4 years ago
While charging a metal sphere negatively by induction the electrons will flow from the ground to the sphere when it is connected to the ground. ... If we connect the positively charged side to ground, electrons from earth will flow towards it due to fact that a potential difference is being developed.

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