Question

Two point charges of +2.50 x 10^-5 C and -2.50 x 10^-5 C are separated by 0.50m. Which of the following describes the force between them?

A): 90 N, repulsive
B): 90 N, attractive
C): 23 N, attractive
D): 45 N, attractive

Answer 1

Option C is correct.

Step-by-step explanation:

Force between two charges = k q₁q₂ / r² , k is constant q₁ , q₂ are charges with separation of r .

= (9 x 10⁹ x 2.5 x 10⁻⁵ x 2.5 x 10⁻⁵) / .5²

= 56.25 x 10⁻¹ / .25

= 22.5 N

23 N .

Force will be attractive as the charges are opposite in nature .