Question

which component provides power to the circuit? 4 (switch) 3 (wire) 1 (battery) 2 (fan)

Explanation:

In a circuit, the battery (component 1) is the power source that provides electrical energy. A switch (4) controls the circuit's flow, a wire (3) connects components, and a fan (2) is a load that uses power. So component 1 (battery) provides power.

Answer:

1 (battery)