Resistance

• Resistance opposes electron flow in an electric circuit.

• Measured in Ohm, symbol Ω.

Understanding Electrical Conductors

• Allow electrical charge to move through them.

• Non-conductive materials like insulators do not allow charge flow.

• All electrical conductors have resistance, with some conductive materials adding specific resistance.

Resistors

• Electrical components that add resistance to a circuit.

• Represented by a symbol in electrical circuit diagrams.

Uses of Resistors

• Control current in a circuit.

• Provide usable energy transfers.