Two identical metal spheres P and Q are supported on insulating stands and placed in contact. What kind of charges will P and Q develop when a negatively charged ebonite rod is brought near P?

P will have a positive charge and Q will have a negative charge

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P will have a negative charge and Q will have a positive charge

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Both p and Q will have positive charge

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Both p and Q will have negative charge

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Solution

The correct option is A
P will have a positive charge and Q will have a negative charge

Conceptual

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Q. Figure shows a negatively charged ebonite rod A which is brought near an uncharged metal sphere P touching the other uncharged metal sphere Q. Both the spheres P and Q stand on separate insulating stands. Rod A is removed first and then sphere Q is removed by holding the insulating stand of it. What kind of charges will then be on the spheres P and Q ?

Fig.8.37 below shows a metal rod AB placed on an insulating stand. In Fig. (a), a negatively charged ebonite rod C is touched with the metal rod AB, while in Fig.(b), the negatively charged ebonite rod C is held near the rod AB. State the kind of charges at the ends A and B of the rod, in each case.

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Two identical metal spheres P and Q are supported on insulating stands and placed in contact. What kind of charges will P and Q develop when a negatively charged ebonite rod is brought near P?

The correct option is A P will have a positive charge and Q will have a negative charge Conceptual

The correct option is A
P will have a positive charge and Q will have a negative charge

Conceptual