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Una carga de -10Mc está situada a 20cm delante de otra carga de 5 Mc. Calcular la fuerza electrostática en Newton ejercida por una carga sobre la otra. a).- Representar la Fuerza Electrostática. b).- Calcular la Intensidad de las Fuerzas.

Sagot :

Answer:

a)  force between them is attraction,   b)  F = 1.125 10⁻² N

Explanation:

In this case the electric force is given by Coulomb's law

          F =[tex]k \frac{q_1q_2}{r^2}[/tex]

           

In the exercise they give us the values ​​of the loads

          q1 = - 10 mC = -10 10⁻³ C

          q2 = 5 mC = 5 10⁻³ C

           d = 20 cm = 0.20 m

let's calculate

          F = 9 10⁹ [tex]\frac{10 \ 10^{-3} \ 5 \ 10^{-3}}{0.20^2}[/tex]

          F = 1.125 10⁻² N

To find the direction of the force we use that charges of the same sign repel each other, as in this case there is a positive and a negative charge, the force between them is attraction