Question
What is the resistance (when lit) of a lightbulb rated at $120 \mathrm{~V}$ and $100 \mathrm{~W} ?$
Step 1
We are asked to find the resistance (R). We can use the formula for power in terms of voltage and resistance, which is given by: \[ P = \frac{V^2}{R} \] Show more…
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