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Calculate the electric flux through the ...

Calculate the electric flux through the ractangle of sides 5 cm and 10 cm kept in the rigion of a uniform field 100 `NC^(-1)` . The angle `theta ` is `60^(@)` . Suppose `theta ` becomes zero what is the electric flux?

Text Solution

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The electric flux `Phi_(E)=vecExxvecA=EA cos theta = 100 xx5xx10xx10^(-4)xxcos 60^(@)`
`implies Phi_(E)=0.25N.m^(2)C^(-1)`
For `theta = 0^(@)` ,
`Phi_(E)=vecE.vecA=EA=100xx5xx10xx10^(-4)=0.5 N.m^(2) C^(-1)`
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