Question: A (100 mathrm{~W}) lightbulb is brighter than a (60 mathrm{~W}) lightbulb when both operate at the same voltage of (120 mathrm{~V}). If, instead, they were

A $100 \mathrm{~W}$ lightbulb is brighter than a $60 \mathrm{~W}$ lightbulb when both operate at the same voltage of $120 \mathrm{~V}$. If, instead, they were both operated at the same current of $0.5 \mathrm{~A}$, which would be brighter? Explain.

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