Certainly, had electricity not been invented, the world would have been a different place than we know it today. Important results of the innovation of electricity such as lighting and heating have all made the world as much livable as possible. Electrical energy flows in a circuit by the use of conductors. For certain results to be obtained at times, it is imperative that this flow of electrical energy through conductors is impaired somewhat. However, to achieve this, there is a need for circuital components called resistors. Thus what makes resistors so important and where can we use them?
One of the most important applications of resistors is in the aid of enforcing controls of certain circuits so that the results of those circuits can be determined. Normally, resistors are categorized into two- the fixed value and the varying valued resistors. According to the needs of an electrical circuit, you will find that varying valued resistors can have their resistance increased or decreased accordingly. By varying the amount of the resistance in a connection, the outputs of a circuit may be varied to give higher or lower outputs. An example of this is seen in the controlling of the sound amplifier.
Secondly, heating using electricity would be impossible without the use of resistors. In normal cases, resistors work by generating a lot of heat. Resistance can thus be viewed as a way to transform electrical energy into heat. This heat is one of the many ways that electric bulbs use to generate light. The heat in electrical heaters is also generated in this way.
More than that, resistors are also useful in the formation of what is called voltage division in an electrical circuit. A voltage divider is essentially created when a chain of custom resistors are joined in a series connection to form a daisy chain. This application works on the premise that if all the resistors in a chain are of the same value, then the amount of voltage at each resistor will be equal. However, when the values are different, the voltages will also differ. The aim of such a connection is to ensure that what was produced at the mains is subdivided into smaller amounts of voltages that can be consumed by appliances with lower power specifications.
Finally, LEDs and transistors won’t work if there were no resistors. These components are usually affected by either too low or too high amounts of electricity passing through them. In order that these two components can work and continue to work, it is imperative that resistors are wired with them to allow only the amount of currents that they can tolerate.