Consider a very thin rectangular conducting plate whose length is 109.0 cm, width is 86.0 cm, and has a total charge of −58.0 nc. the plate lies in the horizontal plane (xz plane) and has a uniform charge density. find the electric field vector at points just above the plate and just below the plate. express your answer in vector form.

electric field just above the plate is given as

Now electric field just below the plate is given as

Explanation:

Charge density of the plates is given as

here we know that

Area = (length)(width)

Now we have

now electric field due to a thin sheet is given by

Now electric field just above the plate is given as

Now electric field just below the plate is given as

what is the question because that is not a question.