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Cici uses a long extension cord to plug a lamp into a wall outlet in the next room.

What effect will the extension cord have on the circuit?

It will decrease the resistance of the circuit.
It will increase the voltage of the outlet.
It will increase the resistance in the circuit.
It will decrease the voltage of the outlet.

1 answer

Using a long extension cord will generally increase the resistance in the circuit.

The resistance of the extension cord depends on its length and gauge (thickness of the wire). Longer cords tend to have higher resistance, which can lead to a voltage drop along the cord. Therefore, while the lamp still receives some power, its performance may be affected by this increase in resistance.

So the correct answer is:

It will increase the resistance in the circuit.