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Three charges +4q .Q and +q are placed along a straight line of length 'a'at points 0, ( a)/(2)and a respectively . Find the relation between Q and q in order to make the net force on q to be zero For the net force q to be zero. |
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Answer» SOLUTION :` F_(CA) +F_(CB) =0` ie. ` (1)/( 4pi in _0) (Q.2Q)/( a^(2) +(1)/( 4pi in -0))(qQ)/((a)/(2)^(2)) =0 `2q +4Q =0 therefore Q= (-q)/( 2) ` ` (##JYT_AJP_AIO_PHY_XII_C01_SLV_009_S01.png" width="80%"> |
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