Answer:
0.0048 N
Explanation:
The electric force acting on a particle is given by
[tex]F=qE[/tex]
where
q is the charge
E is the magnitude of the electric force
F is the strength of the force
The force has the same direction as the field if the charge is positive, and the opposite direction if the charge is negative.
In this problem, we have:
[tex]Q=4.0\cdot 10^{-9}C[/tex] is the charge
[tex]E=1.2\cdot 10^6 N/C[/tex] is the electric field
Therefore, the electric force on the charge is
[tex]F=QE=(4.0\cdot 10^{-9})(1.2\cdot 10^6)=0.0048 N[/tex]