Mathematics, 11.02.2020 20:15, Aliciaonfleek
A 100-watt (W) light bulb has resistance R = 144 ohms (Ω) when attached to household current, where the voltage varies as V = V0 sin(2πft) (V0 = 110 V, f = 60 Hz). The energy (in joules, J) expended by the bulb over a period of T seconds isU =
P(t)dt
where P = V 2/R (J/s) is the power. Compute U if the bulb remains on for 5 h.
Answers: 3
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A 100-watt (W) light bulb has resistance R = 144 ohms (Ω) when attached to household current, where...
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