Pure nickel is highly conductive, but when impurities are added to it, the conductivity goes down. The water solution of which substance is the best conductor of electricity? a) Silver b) Copper c) Gold d) Lead 2 See answers abhi178 abhi178 Answer : option (a) silver explanation : I think , all sixth standard students can say the answer without taking a second of this question . This phenomenon can't happen in an insulator as the electrons are tightly packed and nuclear attraction is high. The best electrical conductor, under conditions of ordinary temperature and pressure, is the metallic element silver. Even then, it is not such a good conductor. Your email address will not be published. Which among the following is the best conductor of electricity? Some of the best metal conductors are Silver (Ag), Copper (Cu) and Gold (Au). Furthermore, quantum mechanics suggest that electrons can only occupy a discrete level of energy in an atom. a. Some materials have electrically charged particles known as electrons. as it is shown in figure. It is used in the internal wiring of the home, and most commonly it is used in combination with copper. The outermost shell of a copper atom is only half filled so that many electrons can flow. Conductivity is measured by an element's ability to transmit energy. An electrical conductor allows the electric charges to easily flow through them. The superconductivity phenomenon was discovered by Heike Kamerlingh Onnes, the Dutch Physicist in the year 1911. Copper is widely used, even though silver is a better conductor because it is a lot cheaper, more durable, and less corrosive. molecule. Its resistance is 9.7 micro-ohm cm. In order of most conductive to least conductive: Certain factors can affect how well a material conducts electricity. It is mandatory to procure user consent prior to running these cookies on your website. Other elements with high electrical conductivity, are aluminum, zinc, nickel, iron, and platinum. Silicon dioxide, SiO2, is a(n) _____. Nickel does conduct electricity. It is most likely a _____. As mentioned before, it also has valence electrons that can flow through the metal when an electric force is applied to it through a battery or any other source. Which one of the following is best conductor of electricity: The valence and crystal structure of silver makes it the best conductor of electricity. It is used in the internal wiring of the home, and most commonly it is used in combination with copper. It varies from material to material. Copper is used because it is less expensive. Gold is a good conductor of electricity. Zinc one has 27%. Which substance dissolves in pure water and produces a solution that is a good conductor of electricity? The spoon became warm. However, not all electrons can jump to another level. In this article, let us know the best conductor of electricity and its properties. 0.05 M KCL. What type of energy is transferred to a pot to make the water boil? The property of conductors to “conduct” electricity is called conductivity. which has a conductivity slightly lesser than copper. Another way to prevent getting this page in the future is to use Privacy Pass. It is a highly unreactive compound which means that the electrons take a lot of force to get excited and start moving around. • insulators. Iron, being a metal, also has free electrons in its valence shell that, with some force from the attached battery, start flowing through it. a. CaCl2 b. C6H12O6 c. N2 d. O2. Only at a certain level can platinum conduct electricity when its electrons become mobile. We'll assume you're ok with this, but you can opt-out if you wish. Only on the surface of the conductor, free charges exist. Although semiconductors are not as good at conducting electricity as conductors, they still have their uses. This cycle goes on, and electric current is generated. a. nonmetal . A conducting wire wrapped in plastic protects the user because the plastic. a. The location of the Lightning arrester is near. heat. The ability of the material to pass electricity through it is known as conductivity. Copper is used because it is less expensive. If the temperature is changed, the conductivity is affected. Thus, there are no free electrons to move around. Required fields are marked *, The inverse of conductance is called resistance. Like all the other metals, it has a cloud of an electron because of the free electrons in the valence shell. If we compare two types of material and the first one allows better flow of electricity through it, then that material is said to be a good conductor of electricity. Emily made a cup of tea and stirred it with a spoon. In other words, a good conductor possesses a higher amount of free electrons which allow easy movement of electrons in return producing more conductivity. The flow of current decreases because of the production of magnetoresistance from the external electromagnetic field. 1. What groupings on the periodic table are made up of elements that react similarly? What Is a Semiconductor and What Does It Do? Performance & security by Cloudflare, Please complete the security check to access. Which of the following is the best name for CaF2? There is a lack of covalent character. It causes galvanic corrosion in other metals if they are in close contact with it, but it would remain unaffected. Electrical wires are coated with a rubber or plastic because these materials are good.

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