Un cable está tendido sobre dos postes colocados con una separación de 10 m. A la mitad del cable se cuelga un letrero que provo
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To solve this problem we will apply the concepts related to the Electrostatic Force given by Coulomb's law. This force can be mathematically described as
Here
k = Coulomb's Constant
Charge of each object
d = Distance
Our values are given as,
d = 1 m
a) The electric force on charge is
Force is positive i.e. repulsive
b) As the force exerted on will be equal to that act on
,
Force is positive i.e. repulsive
c) If , a negative sign will be introduced into the expression above i.e.
Force is negative i.e. attractive