Factors to Consider When Buying Custom Resistors
An electrical resistor is a circuit element that is used to bring about the concept of resistance in a given circuit. Resistance in any circuit may be necessary for purposes of reducing the amount of current flowing through a circuit, dividing the voltage in a circuit, termination of transmission cables as well as adjustment of electric current signals. Given their varied uses, resistors are indispensable components for any electrical network but before a resistor may be used, it is paramount to consider a number of factors.
Firstly, the amount of power used by a resistor is something that must be considered carefully. The amount of power consumed by the resistor is always given as a product of the electric current and the voltage passing through the resistor. Ideally, The amount of power that is dissipated by the resistor defines how much heat the resistor is going to emit and this rise in temperature is not ideal for an electric circuit. Owing to this reason, therefore, any resistor whose power consumption is too high may not be ideal for real daily life scenarios. Read more great facts on power resistor manufacturer,
The other important aspect to consider for any resistor is the amount of resistance it offers to the current flowing through it. The essence of having a resistor is to ensure that there is an opposition offered to the electric current flowing through a circuit. The amount of resistance a resistor can offer is, therefore, dependant on the type of circuit this component is to be used. It thus goes without saying that circuits in need of higher resistance to the flow of electric current should have higher rated resistors and vice versa. For more useful reference regarding us resistor,
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Finally, the type of a resistor is another important consideration for anyone looking to buy a resistor for whatever use they may have. Generally, resistors are divided into two: Variable and fixed resistors. Variable resistors do not have any specific resistance rating. The amount of resistance they provide in a circuit can be varied based on the needs of the circuit. On the other hand, fixed resistors come preset with a set amount of resistance. They are therefore very ideal for circuits that may never have the need for a changing resistance. Such circuits require fewer changes and are not open to manual interventions. Conversely, where variable resistors are used, it is assumed that the resistance of the circuit may need to vary from time to time and therefore some human intervention may be necessary to vary the resistance of the circuit.