5. The sum of two-point charges is 9μC. They repel each other with a force of 2 N when kept 30 cm apart in free space. Calculate the value of each charge.
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Answer:
5μC,4μC
Explanation:
2=9*10^9*(q1*q2/0.09)
q1*q2=20*10^-12
q1*q2=20(μC^2)
q1+q2=9μC
q1=5μC
q2=4μC
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