You first wash the potato really well, then put it in the oven. You will know when it's done by sticking a fork in it, if its hard it's not done yet, if it's soft then it's ready. Then take it out and cut it in half
Go on and cook them and make a small potatoe salad or some mashed potatoes.
Because the smaller potato has less to cook than the bigger potato so there for the bigger potato has to be cooked more because the heat cant get in the potato as quickly as It can get in a small potato
If you cooked it in the oven, it would take longer to cook than in the microwave. I think that is the only way the potato is affected.
You can fry or bake them. Fried potato peels are like potato chips. Ensure they are clean before you cook them.
You can try boiling it.
same as any potato
A potato wrapped in paper will cook in a microwave oven, because paper does not block microwaves. A potato wrapped in aluminum foil would not cook in a microwave because aluminum foil does block microwaves.
no
Probably to help the potato cook faster because of the heat conduction capacity of the nail. Though I would think an iron nail would rust inside the potato. I have aluminum nails that are designed for this.
Endothermic because you have to put heat into the potato to bake it.
Sliced potatoes would cook faster because there is more surface area to absorb the heat
A small, plain baked potato is 4 points.