Athin, horizontal, 18-cm-diameter copper plate is charged to -3.8 nc. assume that the electrons are uniformly distributed on the surface. part a) what is the strength of the electric field 0.1 mm above the center of the top surface of the plate? express your answer to two significant figures and include the appropriate units. part b) what is the strength of the electric field 0.1 mm below the center of the bottom surface of the plate? express your answer to two significant figures and include the appropriate units.

Part a)

Part b)

Explanation:

Part a)

Electric field due to large sheet is given as

now the electric field is given as

Part b)

Now since the electric field is required at same distance on other side

so the field will remain same on other side of the plate

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.