Electric FieldHardQuestion 31467
Question
Two large parallel plates with charges +σ and −σ. Field between them is:
- Aσ/ε₀Correct
- Bσ/(2ε₀)
- C2σ/ε₀
- DZero
Correct answer
σ/ε₀
Explanation
Each plate contributes σ/(2ε₀). Between plates, both contributions add: E = σ/(2ε₀) + σ/(2ε₀) = σ/ε₀. Outside: they cancel, E = 0.