APFIVE Electric Force in a Dielectric Medium
Two point charges are separated by a distance of 2.0 m in vacuum. If the magnitude of the electric force between them is 3.6 × 10^-5 N, what would be the new force magnitude if the charges were placed in a medium with a relative permittivity of 4.0?
A
1.44 × 10^-4 N
B
1.8 × 10^-5 N
C
3.6 × 10^-5 N
D
9.0 × 10^-6 N
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