Two charged particles 1 m apart exert a 1-N force on each other.If the magnitude of each charge is doubled,the force on each particle will be
A)1 N.
B)2 N.
C)4 N.
D)8 N.
E)none of the above

Question

Quizplus · Accepted Answer

Coulomb's Law states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Thus, if the magnitude of each charge is doubled, the force between the two particles will increase by a factor of 2 x 2 = 4. Therefore, the new force on each particle will be 4 N.

Two Charged Particles 1 M Apart Exert a 1-N Force