Which of the following devices would you expect to consume the most energy for each hour that it operates? a portable tape recorder an electric space heater a desk lamp an electric can openerwhich of the following devices would you expect to consume the most energy for each hour that it operates? the answer is an electric space heater?

You are correct, the answer is an electric space heater.
The reason for this is because the heating element generates heat by resisting the flow of current. For this reason, other similar devices such as irons take up a large amount of energy as well.

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -