2. what is variable resistance?
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a variable resistor is a resistor of which the electric resistance value can be adjusted when a variable resistor is a potential divider by using three terminal it is called a potentiometer when only two terminals are used at functions as a variable resistance and is called
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Explanation:
A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.
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