Calculate charge enclosed in a non uniform electric field |Electric fields & charges | Khan Academy

Let's calculate the charge enclosed by a cylinder placed in a non uniform electric field. Since a cylinder is a closed surface, we can use Gauss's law to help us.
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Created by Mahesh Shenoy

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[@duhkksshh1523]

0 is answer if it is modulus of y

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[@667leviosa]

When E = 3 |y| (j^) ,
Net Φ = Φ₁+ Φ₂ + Φ₃
= -EA (θ = π) + EA (θ = 0) + 0 (θ= π/2) = 0
Thus , Q enc = Net Φ × ε = 0 × ε = 0

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