Two Infinite Sheets

Q.

The infinite sheets of uniform charge density $10\frac{\mu C}{m^2},-10\frac{\mu C}{m^2}and5\frac{\mu C}{m^2}$ are placed in vacuum as shown. The direction of field intensity at points A and B are respectively?

1. Left, Left

2. Left, Right

3. Right, left

4. Right, Right

Q.

The infinite sheets of uniform charge density $10\frac{\mu C}{m^2},-10\frac{\mu C}{m^2}and5\frac{\mu C}{m^2}$ are placed in vacuum as shown. The direction of field intensity at points A and B are respectively?

1. Left, Left

2. Left, Right

3. Right, left

4. Right, Right

Q. Two parallel plane sheets 1 and 2 carry uniform charge densities ${\sigma }_1$ and ${\sigma }_2$ as in fig electric field in the region marked II is (${\sigma }_1$ > ${\sigma }_2$)

1. $-\frac{({\sigma }_1+{\sigma }_2)}{2{ϵ}_0}$
2. $\frac{-\left({\sigma }_1{\sigma }_2\right)}{2{ϵ}_0}$
3. $\frac{({\sigma }_1+{\sigma }_2)}{2{ϵ}_0}$
4. $\frac{({\sigma }_1-{\sigma }_2)}{2{ϵ}_0}$

Q. Two parallel plane sheets 1 and 2 carry uniform charge densities ${\sigma }_1$ and ${\sigma }_2$ as in fig electric field in the region marked II is (${\sigma }_1$ > ${\sigma }_2$)

1. $-\frac{({\sigma }_1+{\sigma }_2)}{2{ϵ}_0}$
2. $\frac{-\left({\sigma }_1{\sigma }_2\right)}{2{ϵ}_0}$
3. $\frac{({\sigma }_1+{\sigma }_2)}{2{ϵ}_0}$
4. $\frac{({\sigma }_1-{\sigma }_2)}{2{ϵ}_0}$