How does a variable resistor work ?
Answers
Explanation:
A variable resistor works by adjusting the path that current has to flow. ... The dial you turn will move another piece of wire inside the resistor. The end result is that the electricity will travel through a certain length of the strip depending on where you turn the knob.
Explanation:
A variable resistor works by adjusting the path that current has to flow. Inside the resistor is a strip of metal or conducting ceramic which is connected to one part of the circuit. The dial you turn will move another piece of wire inside the resistor. The end result is that the electricity will travel through a certain length of the strip depending on where you turn the knob. When the electricty goes through a longer path, it will encounter more resistance.