Question

which provides resistance in an electric circuit? wire light bulb battery switch

Explanation:

• A wire is a conductor with very low resistance.
• A battery is a source of electrical energy (voltage), not a resistor.
• A switch is used to open or close the circuit, it doesn't provide resistance.
• A light - bulb has a filament (e.g., tungsten filament in incandescent bulbs) which offers significant resistance to the flow of electric current. When current passes through the filament, it heats up (due to \(I^{2}R\) heating, where \(I\) is current and \(R\) is resistance) and emits light.

Answer:

light bulb