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A nightlight uses 4.00 W of power when plugged into an outlet. Assume that the only resistance in the circuit is provided by the light bulb's filament. The current in the circuit is 3.40 X 10^-2 A. What
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A nightlight uses 4.00 W of power when plugged into an outlet. Assume that the only resistance in the circuit is provided by the light bulb's filament. The current in the circuit is 3.40 X 10^-2 A. What is the voltage across the filament?

User Kuldeep Choudhary
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1 Answer

11 votes

Answer:

117.6 v

Step-by-step explanation:

4 watts = V * 3.4 x 10^-2

V = 117.6 V

User Max Martynov
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3.9k points
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