Electric field due to an infinite plane sheet of charge varies with the distance 'r'from the sheet as *
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Answer:
E=б/2∈₀
Explanation:
б= charge per unit area = Q/A ⇒ Q =бА
consider a cylindrical gaussian surface whose axis lies perpendicutar to the plane of the sheet.
total flux = Q/∈₀= flux due to 2 ends of cylinder + flux due to its csa
= EA + EA + 0 = 2EA
⇒ Q/∈₀=2EA
⇒бА/∈₀=2EA
⇒E=б/2∈₀
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