To lower the voltage and amperage in order to better fit the needs of other components.
A variable resistor means that the resistance can be varied, usually by using a slide. A fixed resistor can not be varied.
To limit the current
Resistance is measured in ohms.
Hi, where there is no need of changing the value of resistor then why do you place variable resistor instead a fixed resistor. After all the selection of resistor depends on the cause of use in application. by the way wide range of resistor values are avilable in the market. if the application requires tuning operation then variable resistor is need to be mounted. nothing is mandatory unless the application requires. Regards, Manjunath A.V
A stepped resistor, also known as a variable resistor or rheostat, allows for adjustable resistance levels, enabling fine-tuning of current flow in a circuit. In contrast, a fixed resistor has a constant resistance value and does not change. While stepped resistors can be used for applications requiring variable resistance, fixed resistors are typically used in applications where a specific resistance is needed. The ability to adjust resistance in stepped resistors offers greater flexibility in circuit design.
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its the colour of the fixed and the variable we define it by its power and name
symbols of fixed resistors
Variable resistors means that a resistor which can change its resistance by control by any person or it self and fixed resistor means that it can not change its value.
A variable resistor means that the resistance can be varied, usually by using a slide. A fixed resistor can not be varied.
To limit the current
General purpose resistor is used to resist the current flow.the common resister is general purpose resister.
those are the fixed resistor...u can't change their values..
Divide the voltage
Resistance is measured in ohms.
zero
Hi, where there is no need of changing the value of resistor then why do you place variable resistor instead a fixed resistor. After all the selection of resistor depends on the cause of use in application. by the way wide range of resistor values are avilable in the market. if the application requires tuning operation then variable resistor is need to be mounted. nothing is mandatory unless the application requires. Regards, Manjunath A.V