# Force of attraction b/w two point charges placed at a distance d is F. What distance apart should they be kept in the same medium so that force b/w them is F/3 ? Explain clearly plz and fast.

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by Kaur000

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by Kaur000

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Let us consider two point charges q1 and q2, placed at a distance d.

Force of attraction,

F = k (q1q2)/d²________(1)

Now, if the force becomes F/3, then let the distance between the point charges be r

Now, force of attraction,

F' = F/3 = k (q1q2)/r²______(2)

dividing equation, (1) and (2),we get

3 = r²/d²

⇒r² = 3 d²

**⇒r = d√3**

**If the distance between them is d√3, the force will be F/3.**

Force of attraction,

F = k (q1q2)/d²________(1)

Now, if the force becomes F/3, then let the distance between the point charges be r

Now, force of attraction,

F' = F/3 = k (q1q2)/r²______(2)

dividing equation, (1) and (2),we get

3 = r²/d²

⇒r² = 3 d²