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.
Resistors are ohmic and fixed whereas metrosils are non ohmic and variable - version of a varistor.
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.
dimmer swithces for lights usually contain variable resistors
difference between fixed and variable inputs
The difference between a variable resistor and a rheostat is the same as the difference between six and half a dozen.
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.
toaster have variable resistot
The different colored bands on it.
difference between constant and static variables in java
The difference between these both is that the control is what stays the same in an experiment and the variable is what changes.
The variable.
By their Colours DUMBARSE im a pornstar