Pencil Resistor For School Project
this project is something different from the usual one you do. In this project we are using graphite which is one of the allotrope of carbon. It was named by Abraham Gottlob Werner in 1789. It is that mineral which we are using to write which we commonly called Pencil lead. Graphite is an electrical conductor, a semimetal, and can be used, for instance in the electrodes of an arc lamp. Here we will graphite as a resistor. So don’t waste time and carry on with your project! HOW IT WORKS On connecting the battery with the battery snap and allowing the metal rod to touch the graphite of pencil you will observe that bulb glows brightly. Then by dragging the metal rod away from the slide of the clip you would observe that the glow of the bulb decreases consequently, it became faint and at last the glow disappears. WHY: On connecting the metal rod with graphite the bulb glows because the circuit gets completed. Graphite, which is a non metal, it is a good conductor of electricity. When the metal rod comes into contact of graphite the circuit gets completed and thus the bulb glows. Graphite here works as resistor. Resistor opposes the flow of current. IT is in the direction opposite to that of electric current. So as you move the metal rod the resistance increases due to which the flow of current decreases. Thus the glow of the bulb becomes fainter and fainter and at last it disappears.
| Batteries Required | No |
|---|---|
| Batteries Included | No |
| Material Type(s) | Plastic |
| Color | Multicolor |
| Product Dimensions | 8 x 8 x 14 cm; 230 Grams |
| Manufacturer recommended age | 0 months and up |
| Manufacturer | Junior Scientist |
| Country of Origin | India |
| Item Weight | 530 g |
Product Info
- Working Model Project Kit / Working Experiments. Ideal for Children, School, Learning Project Activity, Children can use their Creativity & Understand fundamentally. Understand What, How & Why, Principle of Working! Provides joyful and meaningful learning experience. Instils wonder and fascination towards science among young students.
- Ignite interest in subject and inculcate a scientific attitude. Motivates out-of-box thinking imagination and inquisitive mind. It channelizes energy of children in a focussed direction. Great Gift, as Prize /award in Schools, Birthday Party & functions. Complete assembly instructions with easy Language and Photographs.
- All of Junior Scientist products are unique and handmade. We work by designs and Endeavour to create like products. However the very nature of being individually designed by hand gives raw finishing of the projects since it should look that students have created on its own.
