Question

Choose the correct option.

Two charges of 1.0 C each are placed one meter apart in free space. The force between them will be

Options

• 1.0N

• 9 × 10⁹ N

• 9 × 10^-9N

• 10N

Answer 1

9 × 10⁹ N

Explanation:

F = `1/(4πε_0)("q"_1"q"_2)/"r"^2=9xx10^9xx(1xx1)/1` = 9 × 10⁹ N