Write The Formula Related To Current, And Semiconductors What Are Conductors
Q.1 a) Explain Conductor, Insulators, and Semiconductors, Write the formula related to current and charge.
b) The charge of 12 Coulomb moves past a given point every second. How much is the intensity (current) of charge flow.?
Conductor:
A conductor is an object or kind of material that permit the flow of electrical current in one or more directions. A metal wire is a familiar electrical conductor.
Pure essential silver is the best electrical conductor encountered in everyday life. Copper, steel, gold, aluminum, and brass are also good conductors. In electrical and electronic systems, all conductors comprise solid metals molded into wires or etched onto circuit boards.
A few liquids are good electrical conductors. Mercury is an exceptional
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In addition, all insulators become electrically conductive when a sufficiently large voltage is applied that the electric field tears electrons away from the atoms. This is known as the breakdown voltage of an insulator. Some materials such as glass, paper and Teflon, which have high resistivity, are very good electrical insulators. A much larger class of materials, even though they may have lower bulk resistivity, are still good enough to prevent major current from flowing at normally used voltages, and thus are employed as insulation for electrical wiring and cables. Examples include rubber-like polymers and the majority …show more content…
Silicon and Germanium are good semiconductor materials.
Semiconductors are materials that have resistivity values in between those of conductors and insulators, they are neither good conductors nor good insulators.
Semiconductor materials are used to create a range of devices that are used in modern electronic circuits. In order to understand how these devices work we must first gain an understanding of the electrical properties of naturally occurring (intrinsic) semiconductors. We then need to learn about the electrical properties of extrinsic semiconductors. Extrinsic semiconductor material is just a naturally occurring pure semiconductor material that has been modified by a developed process.
Formula related to current and charge:
Electric charge in a solid is carried by particles called electrons. One electron has a very small charge and so for handy measurement of electric charge we use units called
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