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Electricity for your house comes from a
power station where there is a huge piece of machinery called a generator. Inside the generator is an electromagnet which is an iron core with wires which coil around it but do not touch it. In a circle around the magnet - also not touching it-- there are coils of wire.
Power, usually from steam or falling water, makes the electromagnet whirl rapidly inside the coil. And this produces electric current in the outer circle of wire.
The electric current flows from the generator into cables that run sometimes underground and sometimes high up on poles.
They carry the
When you flip a light switch or turn on your television set, you bring the electric current into
This book was made by Celine Bondoc for the Word and Image II class at Washington University in St. Louis. Images on pages 3, 4, & 10 are sourced from the Flickr Photography commons. This was typeset in Din and Wisdom Script and printed on a Xerox 550 color printer.