66.67 V / m
The electric field intensity (E) between the plates of a capacitor is the ratio of the potential difference (V) between the plates to the distance (d) of separation between the plates. Electric field intensity can be measured in V/m. It can be written as follows;
E = V / d ----------------------------(i)
From the question;
V = 4.00V
d = 6.00cm = 0.06m
Substitute these values into the equation above. i.e equation (i) as follows;
E = 4.00 / 0.06
E = 66.67 V / m
Therefore, the electric field intensity between the plates of the capacitor is 66.67 V / m