I am composed of copper, and I am heated by means of the electric current, so that I

I am composed of copper, and I am heated by means of the electric current, so that I can raise the temperature of anything to which I impart heat. I can raise the temperature of paper, so that it will be dried, and of metals, so that they will be melted. I can bake the one, and fuse the other; and should you wish to make an impression on a metallic substance, from a metallic substance, I can enable you to do so. I