Electric Fields in Capacitors Video Lessons

Concept

# Problem: Dry air will break down if the electric field exceeds about 3.0 × 106 V/m. What amount of charge can be placed on a capacitor if the area of each plate is 3.1 cm2?

###### FREE Expert Solution

Charge stored,

$\overline{)\begin{array}{rcl}{\mathbf{Q}}& {\mathbf{=}}& {\mathbf{\epsilon }}_{{}_{\mathbf{0}}}\mathbf{E}\mathbf{A}\end{array}}$

A = 3.1 cm2 = 3.1 × 10-4 m2

ε0 = 8.85 × 10-12 N•m2/C2

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###### Problem Details

Dry air will break down if the electric field exceeds about 3.0 × 106 V/m. What amount of charge can be placed on a capacitor if the area of each plate is 3.1 cm2?

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