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boneill3
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Homework Statement
Assuming the maximum electric field sustained by dry air in a cloud is 3x10^6 Vm^-1
And a distanceof 1000 meters between Earth and cloud. The cloud is 4km long and 1 km wide. ausume uniform eletric field. Find the potential difference.
Homework Equations
[itex]V=Ed[/itex]
[itex]\mu = \frac{1}{2}(\epsilon_{0}\times E^2)[/itex]
The Attempt at a Solution
[itex]\mu = \frac{1}{2}(\epsilon_{0}\times E^2)[/itex]
[itex]3\times 10^6 = \frac{1}{2}(8.85\times 10^-12\times E^2)[/itex]
[itex]E=\sqrt{\frac{3\times 10^6}{\frac{1}{2}(8.85\times10^-12\timesE^2)}}[/itex]
[itex]E = 8.23\times10^8[/itex]
using [itex]V=Ed [/itex]
[itex]E = 8.23\times10^8 \times 1000[/itex]
=8.23x10^11 volts
is this right?
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