- #1
flannabhra
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Homework Statement
A capacitor is charged to V = 5 kV.
A wire is then connected to one plate and is slowly connected to the other. Before actually touching the plate, a spark of length l = 1 cm shoots from the wire to the plate. Using this information, estimate the dielectric breakdown of air, which is the electric field Eair required to generate a spark in air.
Homework Equations
[tex] E = \frac{V}{d} [/tex]
The Attempt at a Solution
[tex] E = \frac{V}{d} = 5 * 10^5 \frac{V}{m}[/tex]