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Electrostatics.. numericals 1)two positive charges distant 0.1 m apart , repel each other with a force of 18 N. If the sum of the two charges be 9 micro-coulomb then calculate their separate values |
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Answer» lomb's law of force between two electrically charged particles : q₁ , q₂ = electric CHARGES on the two particles. r = distance between two particles = 0.1 m the particles are assumed to be point SIZED. Force F = 18 N q₁ + q₂ = 9 μ C --- (1) SOLVE the two EQUATIONS to get the values of charges. q₁ (9 - q₁) = 20 q₁² - 9 q₁ + 20 = 0 (q₁ - 5) (q₁ - 4) = 0 q₁ = 5 μ C or 4 μ C q₂ = 4 μ C or 5 μ C |
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