When calculating the electric field of an object with electric charge distributed approximately uniformly over its surface, what is the order in which you should do the following operations? (a) Check...

When calculating the electric field of an object with electric charge distributed approximately uniformly over its surface,

what is the order in which you should do the following operations?

(a) Check the direction and units.

(b) Write an expression for the electric field due to one pointlike piece of the object.

(c) Divide up the object into small pieces of a shape whose field is known.

(d) Sum the vector contributions of all the pieces.