What is the direction of the electric field in a dielectric medium just outside

Question

What is the direction of the electric field in a dielectric medium just outside the surface of a charged conducting plate?
1. Perpendicular to its surface
2. Parallel to its surface
3. No direction, the field is zero

If the same charged plate is put into a dielectric medium with a lower permittivity, what happens to the magnitude of the electric field it produces on the outside of its surface?
1. Unchanged, but not zero
2. Remains zero
3. Increases
4. Decreases

What is the direction of the electric field inside a charged metal plate?
1. Perpendicular to its surface
2. Parallel to its surface
3. No direction, the field is zero

Explanation / Answer

direction of the electric field in a dielectric medium just outside the surface of a charged conducting plate = Perpendicular to its surface

magnitude of the electric field it produces on the outside of its surface when the same charged plate is put into a dielectric medium with a lower permittivity = Decreases

the direction of the electric field inside a charged metal plate =  No direction, the field is zero

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