Askiitians_Expert Yagyadutt
Last Activity: 13 Years ago
Hello Eshita !
Good morning :)
Well this is very easy question ...try to understand the steps of solving ...
First of all given that distance between the two charge is 10 cm ..
And if you will place the charge between the two charges ...then it will always experience a force..I mean to say that between the two charges there can't be any point where force is zero .. Understand by figure
So the only options is to put the charge either side of the two charges . okay ..
Cosider this figure ..
Then net force on the charge is ...
K 36/ (10+x)^2 - ( K 16/ (x)^2 ) = 0 ( because we have to find x for which net force is zero) ..
36(x)^2 = 16(10+x)^2
6x = 40 + 4x
x = 20 cm ..
Hence from 36 columb charge distance is ...10+20 = 30 cm ...Refer the figure ...

Ask further your doubts...
Regards
Yagya
Askiitians _expert