How would the force of a test charge change if the electric field is doubled?

the force would double.

the force would decrease by half.

the force would increase by a factor of four.

the force would decrease by a factor of four.

The force would double.

Explanation:

The region around a charged particle in which another charged particle experiences a force of attraction or repulsion is called electric field.

The force experienced by per unit test charge when placed in an electric field is called the electric field strength.

Electric field strength = Force / test charge

Force = test charge x electric field strength

if the electric field is doubled, then force also be doubled.

3. dark matter

empty space could also be a simple vacuum