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

Double the first charge to 2Q

Step-by-step 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