Question

Two charges q1 = Q, and q2=Q, the distance between them is R. The electric force between them has magnitude of 10 N. In order to double the magnitude of this force,
you could
O double the distance to 2R
O reduce the distance to R/2
O increase the first charge to 4Q
O double the first charge to 20

Answer 1

Answer:

Double the first charge to 2Q

Explanation:

F = C q1 q2 / r^2      multiply both sides by 2  ( to double the force)

2F  = C *  2  (q1)(q2)  / r^2    <==== so doubling either q will double the force