Symptoms Static Application In Daily Life Static electricity is electricity that does not flow or electrical power charges at rest. Static electricity is a form of electricity that is generated when multiple objects rub together. 1. ELECTRICAL CHARGED RULER You already know that if a ruler or plastic ruler rub-rub on dry hair, then brought near the small pieces of paper, the small pieces of paper will be attracted and attached to the ruler. Why would that be? Because plastic ruler rubbed-rub on hair, become electrically charged. Electric charge that causes small pieces of paper can be attracted to the ruler. Note the picture on the side! Naturally the question arises in your mind, how the electrical charge can be the ruler? Before answering this question, first understand the following explanation. All substances that exist in nature are composed of atoms are very small. Atoms are composed of particles that are positively charged, negative, and neutral. The positive charge is called a proton, an electron and a negative charge is called a neutral charge called neutrons. Does it have to dry hair? What if not dry, oily, for example? Why should the dry? Certain because water has such a poor conductor and energy caused by rubbing the plastic comb wet hair and be absorbed by the water, so it does not appear the symptoms of electrical Called the atomic nucleus or nucleus composed of protons and neutrons surrounded by electrons moving constantly. Electrons in an atom can exit or enter into the arrangement of atoms. If the electrons out of atoms, the number of protons in an atom more than the number of electrons, so the atom becomes positively charged. While the arrangement of electrons in an atom, the number of protons in an atom fewer than the number of electrons, so the atom becomes negatively charged. Atom will be neutral (uncharged) when the number of protons in the nucleus equals the number of electrons surrounding the nucleus. Having understood the above explanation, the question can be answered with the following explanation. Plastic ruler rubbed on hair becomes electrified as the electrons move from the hair to the plastic ruler, plastic ruler so that the excess electrons. Eventually the plastic ruler becomes negatively charged. Based on the above it can be concluded that a neutral object can be charged with static electricity rubbed road. Another example is when a plastic rod is rubbed with wool cloth, the electrons move from wool fabric to plastic rods, plastic rod so that the excess electrons. Thus, the plastic rod becomes negatively charged. Conversely, when a glass rod is rubbed with a silk cloth, then elektronelektron of moving glass rods into silk fabric, so the glass rods electron deficiency. Thus, the glass rod becomes positively charged. Series object indicates that the object will have a negative charge when rubbed with any objects on it, and will acquire a positive charge when rubbed with objects in bawahnya.dinamakan tribolistrik series. Series Tribolistrik 1. Rabbit fur, 2. Glasses, 3. Mika, 4. Wool, 5. Cat fur, 6. Silk, 7. Cotton, 8. Wood, 9. Amber Stone, 10. Damar, 11. Metals (Cu, Ni, Ag), 12. Sulfur, 13. Metals (Pt, Au), 14. Celluloid Are pieces of paper that were attracted by the previous plastic ruler rubbed first so charged? If not, where the charge on the paper so that it can be attracted by a plastic ruler? Pieces of paper do not need to rub, rub that in to the hair is plastic ruler. ruler-rub rubbed into the hair becomes electrified. Electric charge that causes small pieces of paper can be attracted to the ruler. Plastic ruler rubbed on hair becomes electrified as the electrons move from the hair to the plastic ruler, plastic ruler so that the excess electrons. Eventually the plastic ruler becomes negatively charged and are interesting objects, including small and light small pieces of paper, then after small pieces of paper off the back because the cargo liner is neutralized again by water molecules in the air which is polar, the ruler went negative charge toward the positive charge of water molecules in the air. Based on the above it can be concluded that a neutral object can be charged with static electricity rubbed road 2. EVENT OF LIGHTNING ELECTRICAL CONTENT discharge The emergence of lightning caused an electrostatic pad in the ionosphere. Springboard electric charge occurs when electric charges move together. This event is called static electricity discharge. Decommissioning is indicated by a lightning strike in Figure 10. Where the origin of the electric charge in the ionosphere? If there are no other ionospheric layer clouds, possible lightning that happen? Ionosphere / ionosphere ionosphere Thickness: 50 - 100 km Is the layer that is reflected radio waves. Since no absorption of radiation and ultraviolet light then causes a layer of electrically charged to a high temperature. No, because it is due to the lightning- charged clouds. and when the cloud that charged it releases its cargo there will be lightning. Electric charge can be lost by emptying. Discharging occurs when available a way for electrons to flow from one object to another object loaded. Transfer of static electricity from one object to another object called neutralizing static charge or discharge. Discharging it is commonly also called earth, because the charge is often emptied by means of distributing to the ground. Discharging the static charge in the air can occur very big so terrible noise we call thunder. The process of lightning can be explained in Figure 11a, 11b, and 11c. Read the statement The third image. What is a "way for electro" in this case? How is the formation of "street" is? What about the charge distribution on the ground do? Flow of lightning strikes that the finial should be quickly discharged to the ground with the procurement system of lightning current distribution through the shortest path. Dimension or cross- sectional area, and the number of routes is determined by the square of the current conductor of impulses in accordance with a specified level of protection and the high peak current lightning. In the lightning rod, electric charge will flow down safely through metal wires, and into the ground. That's what the call path for electro. Does every cloud that charged will always lead to the occurrence of lightning? How do you explain the physics of your answer? When the sky is cloudy, not all clouds are thunderstorm clouds. Only cumulonimbus clouds that produce lightning. Lightning occurs because the discharge of a cumulonimbus cloud to another cloud or from the cloud directly to Earth. Lightning caused the displacement of negative charge toward the positive charge. According to the limitations of physics, lightning is a giant leap sparks between the two masses with different electric fields. That is the cumulonimbus cloud to ground or between a cumulonimbus cloud.