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Suppose Q. = 4710-3 C and a = 227 mm, then what is the value of Psa? Express your answer in milli-coulombs per square meter (

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Answer #1

We know \wpsa=Q/SA

So, \wp =4π10-3/4πa2

  \wp=10-3/(0.227)2

\wp=19.4 X 10-3 C/m​​​​​​2

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