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Resistors

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ResistorsEdit

Resistors “resist” the flow of electricity and are used to control or limit the electricity in a circuit. Increasing circuit (+) resistance reduces the flow of electricity. Materials like metal have very low resistance (<1Ω) and are called conductors, while materials like paper, plastic, and air have near-infinite resistance and are called insulators.

Adjustable ResistorEdit

The adjustable resistor (RV) is a 50KΩ resistor but with a center tap that can be adjusted between 0Ω (or 200Ω on newer RVs) and 50KΩ. At the 0Ω setting, the current must be limited by the other components in the circuit.

R1
R1

Debut

Adjusting Sound Level

Class

R

RV
RV

Debut

Automatic Street Lamp

Class

R

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