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A resistor is a metal or compound that does not conduct electricity very well. It is used to reduce the amount of current going through a circuit and converts some of the current into heat. In its simplest form a variable resistor uses the same metals and compounds but spreads them out in a line or arc and uses a metal contact to slide or rotate over the material. One contact is on the metal moving contact and the other contact is at one end of the resistor. Moving the contact changes the distance the current must move through the resistor thus changing the amount of current reduced.
What else can I help you with?
Difference between variable and fixed resistor?
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.
Where are variable resistors found?
dimmer swithces for lights usually contain variable resistors
The difference between fixed and variable inputs?
difference between fixed and variable inputs
Difference between variable resistor and rheostat?
The difference between a variable resistor and a rheostat is the same as the difference between six and half a dozen.
What the difference between a variable and control?
The difference between a controlled variable and a variable is in their state. A controlled variable is something which is rigid and constant while a variable is liable to change and inconsistent.
How do you tell the difference between fixed resistors?
The different colored bands on it.
WAP to show the difference between a variable and static variable?
difference between constant and static variables in java
Give ten appliances with variable resistors?
toaster have variable resistot
What is the difference between a variable being tested and a variable being controlled?
The difference between these both is that the control is what stays the same in an experiment and the variable is what changes.
What is one difference between a variable and a numerical expression?
The variable.
How do you know the difference between fixed resistors?
By their Colours DUMBARSE im a pornstar
What is the difference between fix and variable mortgages?
The difference between fixed and variable mortgages are that in a fixed mortgage, the rate can not change. In a variable mortgage, the rate changes with time.
