How can static electricity be helpful

When two different objects are in repeated contact, it causes friction which then creates static electricity. This can be found easily in our everyday actions and it is very annoying even between the lovers.

In fact, there is no electric current flowing in static electricity but tens of thousands of volts occurs, equal to the power of lightning. Then, can we collect static electricity for use?

The answer is yes. In the meantime, they also succeeded in developing an integrated circuit that makes this energy into practical electric energy. Energy harvesting is a technology that harvests and converts energies, which occur in everyday life such as human actions, light, heat, vibration of an object and electromagnetic wave and disappear quickly, into usable energies.

Among many of the energy harvesting technologies, a triboelectric nanogenerator is a device that obtains static electricity, which can be found when two different materials are in contact and detached. So far, there have been many studies on triboelectric nanogenerator, however, it has been difficult to commercialize because of its limitations such as small quantity of energy converted from harvested static electricity and that power is only generated when there is friction.

The light falling on the plate gives it just the extra energy needed to allow the charge to escape to earth. The plate becomes neutral where the paper is white but keeps its charge where the paper is black. The plate is now a copy of the paper with charges taking the place of ink. You could call this a template. Toner particles are sprayed through a negatively charged nozzle onto the plate.

As the toner passes through the nozzle it picks up the charge so that each particle of toner becomes negatively charged. The now charged toner is attracted to the areas of positive charge because unlike charges attract. More light then allows the positive charge to escape However the negative charge on the toner remains.

A sheet of paper is given a very strong positive charge, and then placed in contact with the plate. The paper attracts the toner. The paper is then removed from the plate and passed through a heating unit. The heat melts the toner and bonds it to the paper. In a real photocopier, there is no plate, just a large drum. As the drum rotates its surface goes through stages one through four. At the end of the sequence a scraper removes any toner left on the drum and the whole process is repeated with a new image.

A good photocopier is capable of producing 20 duplicate pages per minute 20ppm , which is approximately one page every three seconds. Q1 If the black areas of the image leave a positive charge in the plate what charge do the white areas of the image leave? Coming to terms with these concepts is necessary for students to make sense of atomic theory and its explanatory power.

Benchmarks for Science Literacy, p. In Static Electricity 1: Introducing Atoms, students are asked to review websites to learn about the atom's basic structure and the positive and negative charges of its subparticles.

This lesson lays the groundwork for further study of static and current electricity by focusing on the idea of positive and negative charges at the atomic level.

Due to the amount and complexity of the information related to this topic, students will gain an understanding of these concepts over time. It is important that they explore this topic in a variety of contexts. Static Electricity 2: Introducing Static Electricity helps expand students' concepts about atoms and how they relate to static electricity.

In this lesson, students perform some simple experiments, creating static electricity to demonstrate how opposite charges attract each other and like charges repel each other. Then, students explore a website that further explains these concepts. Static Electricity 3: More About Static Electricity helps expand students' concepts about atoms and how they relate to static electricity.

In this lesson, students explore a website to investigate concepts related to static electricity. Then, students perform experiments in which they create static electricity and demonstrate how opposite charges attract each other and like charges repel each other.

Static Electricity 4: Static Electricity and Lightning introduces students to concepts about lightning and how they relate to static electricity. In this lesson, students explore a variety of websites to learn about lightning and then explain in their own words what causes lightning and how it is related to static electricity.

Before asking students to explore the websites related to lightning and static electricity, discuss with them their current knowledge of the topic. Distribute the Static Electricity and Lightning activity packet. Students should complete Part 1 of the packet at this time. Ask students to write down their answers using their own words. Inform them that they will revisit these answers later in the lesson, after they complete their webquest.