How would you change the distance between two positively charged particles if the distance is increased by a factor of 2?
a. it is decreased by a factor of 2
b. it is increased by a factor of 2
c. it is increased by a factor of 4
d. it is decreased by a factor of 4

D, it would decrease by a factor of 4

Explanation:

We know the force between two charged particles, also known as Coulombs law.

We are only changing the distance, not the charges, so we can ignore both q and look at r, which is the distance between the two positively charged particles.

So let F be our initial condition:

So the answer is D, it decreases by a factor of 4.

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d is the answer i came up with