Two infinite sheets of uniform charge density + and - are paralle… - Vidyadip

MCQ

Two infinite sheets of uniform charge density $+\sigma$ and $-\sigma $ are parallel to each other as shown in the figure. Electric field at the

A
points to the left or to the right of the sheets is zero.
B
midpoint between the sheets is zero.
C
midpoint of the sheets is $\sigma / \varepsilon_0 $ and is directed towards right.
✓
$A$ and $C$ both

✓

Answer

Correct option: D.

$A$ and $C$ both

d
Electric field due to charge sheet for charge density $+\sigma$ is $E=\frac{+\sigma}{2 \in_{0}}$ and for $-\sigma$ is $E=$$\frac{-\sigma}{2 \in_{0}}$

outside the plates field is $E=\frac{+\sigma}{2 \in_{0}}+\frac{-\sigma}{2 \in_{0}}=0$

between the plates field is $E=\frac{\sigma}{2 \in_{0}}+\frac{\sigma}{2 \in_{0}}=\frac{\sigma}{\in_{0}}$

Ans: $(\mathrm{A}),(\mathrm{C})$

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