Please answer these questions in a very brief but detailed manner. (The image is for the last question) 1. what is a microfarad?2. To be quite honest, I was a little confused in their explanation of why the dielectric material worked so well and I think this line sums it up well here. It is because the dielectric materials can receive induced charges. I am curious, however, is it when these induced charges are too strong that dielectric breakdown occurs?3. Could there be a conductor that is made of a combination of metals that would give a near perfect zero resistivity? But an insulator that has infinite resistivity is harder to make because, of the infinite.4. I wonder why this is, is ultra high power difficult to maintain over short distances? Or is power some how proportional to distance? I am curious to find out! ( see picture)

19 Current, Resistance, and Di, rectCurrent Circuits This giant transformer is one compo nent of a 400,000 V directcurrent (dc) transmission line system recently in. stalled between Australia and Tasma nia. In contrast to the more commonly used alternatingcurrent systems, ultra highvoltage dc systems experience fewer power losses when the power transmission is over long distances