The electric field between the plates is 4000V/m.
To find the answer, we have to know more about the electric field.
[tex]E=\frac{V}{L} \\[/tex]
[tex]E=\frac{120}{3*10^{-2}} =4000V/m[/tex]
Thus, we can conclude that, the electric field between the plates is 4000V/m.
Learn more about the electric field here:
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