Electricity: Which globe uses most energy?

AI Thread Summary
In a parallel circuit with a voltage of 240V, the energy consumed by each light globe is determined by the current flowing through them. The first globe with a current of 0.25A consumes less energy than the second globe with 0.41A, as energy consumption is directly related to current in this context. The formula for power (P = V × I) indicates that the second globe, drawing more current, uses more energy. The discussion highlights confusion about the relationship between current, voltage, and energy consumption, emphasizing the need for clarity on these concepts. Understanding the power calculation is essential for determining energy usage accurately.
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Homework Statement



Two light globes are connected in parallel in a 240V circuit. One light globe has a current of 0.25A flowing through it. The other has 0.41A glowing through it. Which light globe is consuming the most energy and why?


Homework Equations





The Attempt at a Solution



Well I'm stuck with two possibilities on this one:

1) 0.25 A light globe is consuming the most energy as it has less current going through it. (?)

2) Both are consuming the same amount of energy as in a parallel circuit the voltage remains the same in both globes. As both globes have the same voltage, then they are using the same energy. (?)

(I'm leaning towards 2. But both could be incorrect. I just can't see how current is linked to energy as that is a potential difference (voltage) thing.)

ANy help would be greatly appreciated. Thanks
 
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is there an equation to find the energy consumed? if not, find the power of each one ..
 
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