Electric field between parallel plates
Two parallel plates 3 mm apart have a potential difference of 12 V. What is the electric field between them?
Answer C: explanation for every choice
A
This divides 12 by 3 without converting millimeters to meters.
B
This converts 3 mm to 0.3 m instead of 0.003 m.
C
Correct. E = V/d = 12 V ÷ 0.003 m = 4,000 V/m.
D
This converts 3 mm to 0.0003 m.
TakeawayUniform field: E = V/d. Convert to meters.
Equation usedUniform field between plates
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