InterviewSolution
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InterviewSolution
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What is the force between two small charged spheres having charges of 2 xx 10^(-7)C and 3 xx 10^(-7)C placed 30 cm apart in air? |
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Answer» Solution :`q_(1)=2 xx 10^(-7)C =3 xx 10^(-7)C, R=30cm=30 xx 10^(-2)m` `F=9 xx 10^(9) xx (q_(1)q_(2))/(r^(2))=9 xx 10^(9) xx (2 xx 10^(-7) xx 3 xx 10^(-7))/((30 xx 10^(-2))^(2)) =0.06 xx 10^(-1)N =6 xx 10^(-3)N ("repulsive")` |
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