What happens to the field strength E = F / q if the force F is doubled?

Let E be the field strength on which the force F acts, and E1 the field strength on which the force 2 * F acts. In this case, according to the condition of the problem, q1 = q1 = q, that is, it is the same in both cases. Then:

E = F / q is the field strength in the first case;

E1 = 2 * F / q – field strength in the second case.

E1 / E2 = 2 * F * q / (F * q) = 2.

Answer: If the force is doubled, the field strength will also double.