Question

out of the following materials:
wood, paper, cardboard, natural fibers, organic granular material, and aluminum foil
which is the best insulator?

Answer 1

they use paper to insulate the plates of certain types of capacitors from one another, and the plates are packed in there with each other really tight. so, thats a gooooood insulator. however, since paper is made of wood, it may be considered a better insulator.