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Why do you use a variable resistor?
The characteristics of some circuit components cannot be predicted with complete accuracy. Variable resistors are provided in circuits involving these components sometimes to make up for these unavoidable variations.Variable resistors are often used to make it possible for users set suitable volumes in headphones and speakers.Variable resistors may be used to set time constants in circuits that also include capacitive or inductive elements.
What is the dependent variable of the experiment?
Dependent Variable: - Something that might be effected by the change in the independent variable - What is observed - What is measured - The data collected during the investigation :)
What is the name of the variable that's used to predict another variable?
The variable that is used to predict another variable is usually called the "independent variable" or the "predictor variable." This variable is manipulated or controlled in an experiment to observe its effect on the outcome variable, which is known as the "dependent variable."
What variable is always graphed as the independent variable?
x is used a lot to represent an independent variable. When time is the independent variable t is often used as well.
Who invented resistors?
The concept of electrical resistance was first discovered by Georg Simon Ohm in the early 19th century. Resistors as components used in electrical circuits were developed and refined over time by various inventors and engineers, with no single individual credited with the invention of resistors as we know them today.
Do potentiometers have polarity?
no there is no consideration of positive or negative legs in case of resistor.
What is the advantages of variable resistor?
When we want to regulate somthing ;we use variable resistors for example :volume control in radios and volume in headset. Also , the variable resistors can forms a potential devider in which the overall resistance between the two end points remain the same,but the ratio of the two resistors in the legs changes.so the variable resistor is affectively a potential divider. Also, the variable resistor can forms a potential divider in which the overall resistance between the two end points remains the same, but the ratio of the two resistors in the legs changes. So, the variable resistor is effectively a potential divider.
What are those materials of resistors?
most of the resistors commonly used are carbon resistors
What is the difference between normal resistance and potentiometer?
Resistors are either fixed value, or variable. A variable resistor has three terminals; one at either end and one attached to a moving 'wiper', and can be connected either as a potentiometer or as a rheostat. So 'potentiometers' and a 'rheostats' are different applications for variable resistors. A potentiometer uses all three terminals, and is used to control levels of potential; whereas a rheostat uses just two of the three terminals, and is used to control current.
Why do you use a variable resistor?
The characteristics of some circuit components cannot be predicted with complete accuracy. Variable resistors are provided in circuits involving these components sometimes to make up for these unavoidable variations.Variable resistors are often used to make it possible for users set suitable volumes in headphones and speakers.Variable resistors may be used to set time constants in circuits that also include capacitive or inductive elements.
Are wire wound resistors used in parallel circuits?
Can be. Wire wound resistors might take more power, or offer better precision, or custom resistance values. Wherever, whenever those features are desirable, whether its a series or parallell circuit, a wire wound resistor might be used.
Why resistors are connecting?
resistors are used to resist the flow of current in a circuit.......
What are resistors and why are they used?
Resistors are like funnels, they restrict the flow of current.
What are advantages of a series combination of resistors?
parallel combination of resistors are used in house circuits
Where a varying voltage is required this can be achieved by?
Variable resistors are called rheostats. A potentiometer can be used as a rheostat. Use the wiper terminal and one of the outside terminals for connections. The third terminal of the potentiometer is unused.
Where is the resistor used?
The resistors are mainly used to reduce the current
What is a system used to label resistors?
color
