Charging an object by Induction


 
 
Concept Explanation
 

Charging an object by Induction

Charging by induction: In charging by induction, charging is done without touching the charged body to the object that has to be charged. For example, a charged glass rod is brought close to a metal object, but does not touch it.If a charged body is brought near an uncharged body then neutral body becomes oppositely charged. We can charge any type of material body.

                  

In the figure above when a charged rod is bring closer to the neutral sphere then there occur redistribution of the charge with in the sphere. When we bring a negatively charged electrode closer to the sphere , the positive charge get accumulated in the face of the sphere facing the rod. If we remove the electrode the sphere will get uncharged again . To get a positively charged sphere the negative charge of the sphere has to be  removed by earthing.

Sample Questions
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Question : 1

A positive points charge Q is brought near an isolated metal cube then:

Right Option : D
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Question : 2

There are two methods through which charge transfer can take place between two bodies are

Right Option : C
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Question : 3

On rubbing  ________  electricity is produced. 

Right Option : C
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