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How does electricity ? essay
Electricity and its importance
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Have you ever seen a levitating orb? A real orb just floating in the air. This is not some magic trick, it is science. To make the orb levitate you must first know about electricity and how it works. Static electricity is what causes it to levitate. To understand how this electricity works we must start with the basics. The atom is the smallest unit of matter, consisting of protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. Electric charges that are the same repel each other and charges that are different attract each other. Electric charges can exist alone, unlike magnetic poles. Electric force is the attraction or repulsion between electric charges. An electric field is a region around a charged object where the object’s electric force is exerted on other charged objects. When one charged object is placed in an electric field of another charged object it is either pushed or pulled. If the the two objects have the same charge, it is pushed. If the two objects have opposite charges, one is pu...
An atom, by definition, is the smallest part of any substance. The atom has three main components that make it up: protons, neutrons, and electrons. The protons and neutrons are within the nucleus in the center of the atom. The electrons revolve around the nucleus in many orbitals. These orbitals consist of many different shapes, including circular, spiral, and many others. Protons are positively charged and electrons are negatively charged. Protons and electrons both have charge of equal magnitude (i.e. 1.602x10-19 coulombs). Neutrons have a neutral charge, and they, along with protons, are the majority of mass in an atom. Electron mass, though, is negligible. When an atom has a neutral charge, it is stable.
Dielectric study of solid polymer electrolytes is an important technique for understanding the various relaxation processes, which are associated with the ion motion. The frequency dependent dielectric constant at room temperature for the PEO with different wt% of KCl is shown in Figure 3.14(a). It is evident from the figure that the dielectric constants are significantly high in the low frequency region due to electrode polarization and space charge effects and it obeys the non-Debye type behaviour [53, 54].
Atoms are electrically neutral; the electrons that bear the negative charge are equal in number to the protons in the nucleus
Electrolysis is the only permanent hair removal methods that can help you achieve and maintain a smooth, hair-free beautiful aspects. This is a convenient, low-Charge strategy to refresh your image, increase your confidence and enhance Your enjoyment of life everyday.
Acoustic levitation takes advantage of the properties of sound to cause solids,and liquids to float. The process can take place in normal or reduced gravity. To understand how acoustic levitation works, you first need to know a little about gravity, air and sound.
In the article,"Energy Story", it tells you all about basic energy and how scientists found out how it works. It tells you about each part of an electron and what part is what. The center is called the Nucleus. Electrons and atoms move together to create what is known as electricity. Atoms and electrons flow through an object
Force is a push or a pull, which can make an object start moving when
First off, what is current. Current is expressed in a unit called Amps. Amps are a measurement of how many electrons pass per second. That is to say, a wire with 40 coulombs passing any point in a 2 seconds would be said to have 20 Amps of current (40 Coulombs (a unit of charge given as 6.24x1018 electrons) / time in seconds or in this case, 2 seconds. The Amp is also known as Coulombs per second) Another trick about current is that it is measured in the movement of the positive charge. Literally that is to say the current moves in oppostion to the electrons. This is because originally it was thought that the positive charge is what moved, both are viable, but in reality a positive charge is generally fixed since within an atom the electrons are migratory, while the protons and neutrons tend to be stationary.
A conductive atom’s valance shell is not completely full; electrons will flow from atom to atom because of this. When these electrons move from one atom to another, that is electrical current (a brief description of that is). A magnet can be made from different materials, but a loadstone is the natural form. The most important part of magnetism to make electric motors work is: A magnet has two different ends, or poles, a north and a south pole. These poles behave like electric charges, like poles repel and unlike poles attract although magnets have no effect on still charges.
A test charge with twice the quantity of charge would possess twice the potential energy at a given location; yet its electric potential at that location would be the same as any other test charge. A positive test charge would be at a high electric potential when held close to a positive source charge and at a lower electric potential when held further away. In this sense, electric potential becomes simply a property of the location within an electric field. Although the concept of electric potential is useful in understanding electrical phenomena, only differences in potential energy are measurable. If an electric field is defined as the force per unit charge, then by analogy an electric potential can be thought of as the potential energy per unit
The phenomenon called electromagnetic induction was first noticed and investigated by Michael Faraday, in 1831. Electromagnetic induction is the production of an electromotive force (emf) in a conductor as a result of a changing magnetic field about the conductor and is a very important concept. Faraday discovered that, whenever the magnetic field about an electromagnet was made to grow and collapse by closing and opening the electric circuit of which it was a part, an electric current could be detected in a separate conductor nearby. Faraday also investigated the possibility that a current could be produced by a magnetic field being placed near a coiled wire. Just placing the magnet near the wire could not produce a current. Faraday discovered that a current could be produced in this situation only if the magnet had some velocity. The magnet could be moved in either a positive or negative direction but had to be in motion to produce any current in the wire. The current in the coil is called an induced current, because the current is brought about (or “induced”) by a changing magnetic field (Cutnell and Johnson 705). The induced current is sustained by an emf. Since a source of emf is always needed to produce a current, the coil itself behaves as if it were a source of emf. The emf is known as an induced emf. Thus, a changing magnetic field induces an emf in the coil, and the emf leads to an induced current (705). He also found that moving a conductor near a stationary permanent magnet caused a current to flow in the wire as long as it was moving as in the magnet and coiled wire set-up.
Humans these days take electricity for granted. We don’t truly understand what life was like without it. Most young adults will tell you their life does not depend on electricity, but they aren’t fooling anyone. They all know that their life depends on electricity; whether it’s television, their phone, Google, or the lights in their house. We need to stop taking those things for granted and give credit where credit is due. That is why I chose to write about the scientists who contributed to the discovery of electricity, which then helped modern scientists fuel the electricity phenomenons we now have today.
Most objects are made of matter with equal amounts of positive and negative charge. Objects with the same # of positive and negative charges are electrically balanced, or neutral. Electric force is observed only when the balance of charge on objects is disturbed.
Finding use in “spacecrafts, pacemakers, underwater systems, electric automobiles, and remote monitoring systems” (source 6), the atomic battery has existed for over a century and is growing to benefit our world. The atomic battery generates electricity from a nuclear reaction, utilizing the radioactive decay of specific elements. The atomic battery is certainly not meant for households or as a source of common battery use, but rather powerful equipment needing to run for long, extended periods. Atomic batteries are quite expensive, but can provide an immense amount of energy that will conduct over an extremely long life period. This paper will explain the basic functioning of an atomic battery, investigate a brief history of the atomic battery, and also examine one aspect of energy conversion within atomic batteries, thermal converters.