Question

Two parallel plates A an B having charge density +sigma and - sigma respectively the electric field will be non zero in which region​

Answer 1

Answer:

We know that the field due to charge sheet is E = σ2ϵ0 Here the field in between the plates is E = E1 + E2 = σ2ϵ0 + σ2ϵ0 = σϵ0 V/m

Explanation:

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Answer 2

Answer:

The electric field in the second region will be non-zero.

Explanation:

Given that Two parallel plates A and B have charge density +sigma and - sigma that is

$E_{+},E_{-}=\frac{\sigma }{2\epsilon _{0}}$

Now in the region I the electric field will be

$\frac{\sigma }{2\epsilon _{0}}-\frac{\sigma }{2\epsilon _{0}}=0$

Now in the region II the electric field will be

$\frac{\sigma }{2\epsilon _{0}}+\frac{\sigma }{2\epsilon _{0}}=\frac{2\sigma }{2\epsilon _{0}}$

Cancel $2$ from the numerator and denominator:

$\frac{\sigma }{2\epsilon _{0}}+\frac{\sigma }{2\epsilon _{0}}=\frac{\sigma }{\epsilon _{0}}$

Therefore, the electric field in the second region will be non-zero.