Here's how the electric force changes if you increase one charge by a factor of 2:

The electric force will also increase by a factor of 2.

Explanation:

Coulomb's Law describes the electric force between two point charges:

* F = k * (q1 * q2) / r²

Where:

* F is the electric force

* k is Coulomb's constant (a constant value)

* q1 and q2 are the magnitudes of the charges

* r is the distance between the charges

If you double one of the charges (let's say q1), the force becomes:

* F' = k * (2q1 * q2) / r²

This simplifies to:

* F' = 2 * (k * q1 * q2 / r²) = 2F

Therefore, doubling one charge doubles the electric force between the two charges.