Force of attraction between two point charges Q and -Q separated by d, metre is {Fₑ} . When these

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1. Electric Charges and Fields

easy

Force of attraction between two point charges $Q$ and $-Q$ separated by $d\,$ metre is ${F_e}$. When these charges are placed on two identical spheres of radius $R = 0.3\,d$ whose centres are $d\,$ metre apart, the force of attraction between them is

Greater than ${F_e}$

Equal to ${F_e}$

Less than ${F_e}$

None of these

(AIIMS-1995)

Solution

(a) Separation between the spheres is not too large as compared to their radius so due to induction effect redistribution of charge takes place. Hence effective charge separation decreases so force increases.

Standard 12

Physics

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medium

(KVPY-2014)

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hard

(AIIMS-2018)

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medium

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medium

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easy

Force of attraction between two point charges $Q$ and $-Q$ separated by $d\,$ metre is ${F_e}$. When these charges are placed on two identical spheres of radius $R = 0.3\,d$ whose centres are $d\,$ metre apart, the force of attraction between them is

Solution

Similar Questions

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