A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is___________?
A. 100 kV/m
B. 10 kV/m
C. 5 kV/m
D. 2 kV/m
A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is___________?