Rheostat

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Uploaded by on Dec 20, 2010

A Rheostat (also known as a variable resistor) is an electrical component to vary the amount of current flowing through the circuit.
A rheostat is a two-terminal variable resistor. Often these are designed to handle much higher voltage and current.
The symbol for a rheostat is a resistor symbol with an arrow diagonally across it.
Rheostats are used in many different applications, from light dimmers to the motor controllers in large industrial machines.

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  • which spring have u used??

    where do u get it??

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