Physics

Problem

Two point charges,

+3.0\,\mu\text{C}

and

-2.0\,\mu\text{C}

, are separated by

0.050\,\text{m}

. What is the magnitude of the electrostatic force between them when the space is filled with water of relative permittivity

k=80

? a)

6.7 \times 10^{-2}\,\text{N}

2.7 \times 10^{-1}\,\text{N}

1.3 \times 10^{-2}\,\text{N}

3.4 \times 10^{-3}\,\text{N}