Electricity & Magnetism
Uniform Electric Field
Electric field between parallel plates.
Variables
EV/m
Electric field
Field strength
In SI units: kg·m/(A·s³)
VV
Potential difference
Voltage across plates
In SI units: kg·m²/(A·s³)
dm
Distance
Plate separation
Allowed values: greater than 0
Derivation
V = Ed for uniform field (E = -dV/dx).
Your notes
0/5000
Check value
Round inputs run through this page's calculator. Use it to test your own working or a rearranged form. It is a test case, not a real-world example.
- V = 2 V (Potential difference)
- d = 3 m (Distance)
Result: E = 0.66666667 V/m
Where this formula is listed
- Electricity & Magnetism formulas, under Electrostatics, alongside Coulomb's Law, Electric Potential, Electric Potential Energy, Gauss's Law and Electric Dipole Moment.
- In the electricity & magnetism list it comes after Electric Potential Energy and before Gauss's Law.
- Electricity & Magnetism formula sheet, one of 48 formulas printed with symbol keys and SI units.
- The full formula index, grouped by category and topic.
Common questions
What is the Uniform Electric Field formula?
Uniform Electric Field is written E = V/d. Electric field between parallel plates. It belongs to Electricity & Magnetism, under Electrostatics.
What are the units in E = V/d?
In SI units, E is electric field, measured in kg·m/(A·s³); V is potential difference, measured in kg·m²/(A·s³); d is distance, measured in m.
How is the Uniform Electric Field formula derived?
V = Ed for uniform field (E = -dV/dx). The result is E = V/d.