1.     i) Batteries are basically energy converters. They change energy from one form to another: chemical to electrical. You can get more information about how batteries are made from this URL:

    http://www.howstuffworks.com/battery.htm

       ii) My brief answer above must help you visit related websites where you can find interesing links about how they look. I'm sure you've seem common batteries typically torch light batteries, mobile phone batteries, button cells or batteries for your electronic gadgets including watches and so on. Do visit that URL above.

2.   You are indeed right about how the magnetism is introduced into the superconductors by inductive coupling. This is done by various techniques including using low temperatures below Tc and high pressure. I thought I should share with you the URL’s of some web sites that I have found informative when discussing the concept of superconductivity with my students.

The Fundamentals of superconductors by Richard Kerchner from the Oak Ridge National Laboratory and Robert Dull of Largo High School has some very good introductory details.

    http://www.ornl.gov/reports/m/ornlm3063r1/pt3.html

The best web site of course to find information on superconductors would be the ‘Superconductor Information For The Beginner’ at the URL:

    http://www.superconductors.org/

Make sure you’ve clicked on the ‘Superconductors Links’ in the above URL to feast yourself on some of the other issues that you may be interested.

I found the recent ‘Superconductivity Leaves The Lab’ article by John Burgoyne in the October 2000 issue of PhysicsWorld to be informative as well.

    http://physicsweb.org/article/world/13/10/3/1

3.    These terms are commonly used in marketing loudspeakers to make them sound impressive. Have you read Scott Adams, more commonly recognized by his DILBERT series of books which are a spoof on management principles. On a section giving his tips on describing one's accomplishments to the boss, he says in the book 'The Dilbet Principle' the following.

"Acronyms are your allies. They sound impressive while conveying no information. Use them liberally.

BOSS: 'What was your contribution to the project?'

YOU: 'Mostly QA. I was also an SME for the BUs.'

BOSS: 'Um...okay. Excellent work."

Try to find this book at a nearby library. You'll find this and some others such as 'The Dilbert Future' simply delightful.

Well all this was a bit of a digression, but to come back to your question, these two words stand for Peak Music Power Output and RMS is used extensively in physics across the different disciplines to mean Root Mean Square value of something, or simply the average value of something. It could be current, voltage, velocity and so on.

In any case you should find the answer to a similar question by Joe at the URL interestingly :

    http://www.compware.com.au/tforum/messages/511.html