Four identical light bulbs are connected to a power supply as shown. Which light bulb consumes the most power? A) B₁ B) B₂ C) B₃ D) B₄ E) They all consume the same amount of power.

Question

Quizplus · Accepted Answer

All four identical light bulbs are connected in parallel to the power supply, which means that they each receive the same voltage. Since they are identical, they will also have the same resistance. Therefore, according to the formula P = V^2 / R, they will all consume the same amount of power.

Four Identical Light Bulbs Are Connected to a Power Supply