Undoubtedly, the world wouldn’t be as liveable as it is now if electricity wasn’t invented. Important results of the innovation of electricity such as lighting and heating have all made the world as much livable as possible. For electricity to flow in a circuit, there is of essence must be a conductor. From time to time, it may be needful to block this flow of electrical energy to achieve certain results. Circuital components that can be used to achieve this goal are called resistors. What then are the uses of resistors in an electrical circuit?
The first important use of custom resistors and where they may be needed is where they can be used as elements for controlling results of certain connections. Generally, resistors can be classified as being fixed or of variable values. The variable resistors are those whose values of resistance can be changed to achieve varying amounts of electrical resistance. These changes in the amount of resistance are in effect going to cause the outputs of those circuits to vary accordingly. A example in real life use case is when resistors are used to punctuate the loudness of the sound produced by an amplifier.
The second thing to note is that custom resistors can also be employed for heating purposes. Normally, resistance to the flow of electricity is a process that produces a lot of heat. Electricity can thus be converted into heat by the use of resistors. This heat is one of the many ways that electric bulbs use to generate light. One of the commonest applications of this mechanism is also seen in electrical heating devices.
Custom resistors can also be employed to serve as voltage dividers in electrical circuits. For this to be achieved, a good number of resistors need to be wired together in series 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. The voltages will differ, however, if the resistors are different. 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 two components will never function in the event where there is too high or too low amounts of electrical currencies passed 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.