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Carbon Resistors

Carbon Resistors: A component whose function in a circuit is to provide a specified value of resistance is called a carbon resistor. A carbon resistor is manufactured by baking a powdered carbon mixed with a binding material. This results in a small tube with a wire attached to both ends. The range of carbon resistor is from a fraction of an ohm to several million ohms. The power rating of a carbon resistor depends upon the physical size of the resistor. Power rating means the electrical by consumed by a component or converted into another form of energy by that component. In our case resistor is going to be discussed so a large resistor is able to dissipate more energy  into heat than a smaller one which means larger resistor consumes more power and that is why its power rating is high. Color coding scheme: A color code is printed on a carbon resistor which gives us information about the resistance of that resistor. In this scheme generally a carbon resistor has four band...

Resistor and Resistance

Resistor: It is defined as an electrical element which is used to confine or limit electric current through it. Resistance:  The property by which a resistor opposes the flow of current is called resistance. It can also be found from ohm’s law which states that the ratio of voltage to current is called resistance.  Mathematically                                                                    V/I = R Unit : The unit of resistance is ohm on the name of George Simon Ohm who gave ohm’s law and is defined as "When one volt of potential difference causes to flow a current of one ampere through a conductor then the resistance of conductor is one ohm". It is represented by the Greek letter omega Ω. Explanation : Resistance is the property of substance or material from which a conductor is made ...

Basics of Electrical Engineering

Well if you are going to study Electrical Engineering first you will have to study Physics which is "Mother of Electrical Engineering". In addition to this you should be good at basic mathematics too but don't worry here we will explain each and everything in detail. So let's start.           Basic Concept:                                               First of all we would try to understand what is matter because this field starts from matter. For this I would like to give you a clear and concise overview with a latest theory in this field called modern electron theory of matter. Modern Electron Theory of Matter:                              This theory describes that all matter whether solid , liquid , gas and plasma is composed of small particles call...