How and Why Wonder Book Electricity by Jerome J. Notkin, Sidney Gulkin, Robert Patterson, Charles

By Jerome J. Notkin, Sidney Gulkin, Robert Patterson, Charles Bernard

Whilst a city stands nonetheless for 8 hours, it's lacking whatever amazing vital. One such city stood nonetheless as the electrical energy stopped. This used to be such a lot inconvenient for everybody, however it did make a boy named Mike and his sister Susan Jane give it some thought. They have been choked with questions: what's electrical energy? How will we make electrical energy? How does electrical energy get to our city? simply as Mike and his sister discover the wonders of electrical energy with their father, so will inquisitive kids in all places get solutions to their questions on electrical energy as they learn this ebook. just like the others within the How and Why ask yourself booklet sequence, this technological know-how publication is real and colourful and will be learn with curiosity by means of the full kinfolk.

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You should now have two wires con­ nected to each of the terminals of cell 1. Do this: Connect the dry cells, wires, switch and bulb as shown in the illustration. First connect one dry cell in a circuit with your switch and the light bulb. H you have forgotten how to do it, go back to A ctivity No. 2. Now connect two other wires to the terminals on cell 2. Press the switch. Notice that the light is not any brighter than it was when only one cell was in the circuit. Why it works: You connected the two dry cells in parallel.

How many volts do you have now? Would you like to try it with an elec­ tric bell? 32 NO. 4. HOW CAN WE CONNECT T WO DRY CELLS TO MAKE THEM LAST LONGER? You will use: · Two dry cells Wire Switch Flashlight bulb Miniature socket Take the wire coming from the end terminal of cell 2 and connect it to the end terminal of cell 1 . You should now have two wires con­ nected to each of the terminals of cell 1. Do this: Connect the dry cells, wires, switch and bulb as shown in the illustration. First connect one dry cell in a circuit with your switch and the light bulb.

Some are better than others. , or rubber, you will find that the light will not go on. Not enough electricity passes through them to light the bulb. These materials are called non-con­ ductors. 36 NO. 8 . HOW CAN WE M A KE A Q U I Z Now attach a third wire to the re­ You will use: maining terminal of the socket. Dry cell This is similar to your conductor Wire Flashlight bulb Miniature socket tester in A ctivity No. 7. Touch the two free ends of the wires together briefly. The light will go on. Cardboard Hold the cardboard so that you can­ Nail not see how the wires are connected.

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