two positive charges q1 and q2 are kept at a distance of 3m in air if q1+q2=16 micro C coulomb force between them is 48×10^-3
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hmmmmmmmmmmmmmmmmmmmm
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1
q
1
+q
2
=20μC
⟹q
1
=20−q
2
F=
4πϵ
o
R
2
q
1
q
2
⟹0.075=9×10
9
×
3
2
q
1
q
2
⟹q
1
q
2
=0.075×10
−9
=75×10
−12
C
2
⟹q
1
q
2
=75μC
2
⟹q
2
(20−q
2
)=75
⟹q
2
2
−20q
2
+75=0
⟹(q
2
−15)(q
2
−5)=0
⟹q
2
=15μC
q
1
=20−q
2
=5μC
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