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...where homes are delivered 240V of electricity, what will the power output be for that bulb in the US where we Okay what I did was I took P=IV and found I for Europe to be 0.313A. Then I multiplied that by But the answer is actually 18.75W which is exactly half my answer... Where did I go wrong?A lightbulb marked "75 W [at] 120 V" is screwed into a socket at one end of a long extension. cord, in which each of the two conductors has resistance 0.800 \'. The other end of the extension cord is plugged into a 120-V outlet. Draw a circuit diagram and find the actual power delivered...2 General Physics 2Electric Field2 Motion of q in a uniform E field The figure shows an electron entering a uniform electric field of 1500. 15 General Physics 2Current & Resistance15 Think-Pair-Share You buy a 75-W lightbulb in Europe, where electricity is delivered to homes at 240 V. If...Think-Pair-Share (L) • You buy a 75-W lightbulb in Europe, where electricity is delivered to homes at 240 V. If you use the lightbulb in the US at 120 V (assume its resistance does not change), how bright will it be relative to 75-W 120-V bulbs? [Hint: assume that brightness is proportional to power...How Bright Will Itbe Relative To 75-W 120-V Bulbs?

You buy a 75-W lightbulb in Europe, where electricity is | SolutionInn

Imagine a world where charging cords don't exist and every device is powered as soon you walk into a room. Well, soon that might be a reality.You buy a 75-W lightbulb in Europe, where electricity is delivered to homes at 240 V. If you use the lightbulb in the United States at 120 V (assume its resistance does not change), how bright will it be relative to 75-W 120-V bulbs?(11) 10 points Explain why light bulbs almost always burn out just as they are turned on and not after they have been on for some time. (1.68 × 10−8 Ωm)(2.0 × 10−3 m)2 (20.0 m) (II) You buy a 75-W lightbulb in Europe, where electricity is delivered to homes at 240 V. If you use the...You buy a 75-W lightbulb in Europe, where electricity is delivered at 240 V. If you use the bulb in the United States at 120 V (assume its resistance does not change), how bright will it be relative to 75-W 120-V So, in the US, the voltage is 120 volts, whereas in Europe, the voltage is at 240 volts.

General Physics 2Current & Resistance1 E5 - Current So far we've...

Home» Questions »Science/Math » Physics » General Physics » You buy a 75-W lightbulb in Europe, where... where electricity is delivered at 240 V. If you use the bulb in the United States at 120 V (assume its resistance does not change), how bright will it be relative to 75-W 120 V bulbs?Start studying Current Electricity. Learn vocabulary, terms and more with flashcards, games and 594 3) What is the current through a 75 W lightbulb that is connected to a 125 V outlet? (An automotive battery can deliver 55 A at 12 V for 1 h and requires 1.3 times as much energy for recharge due to its......electricity is delivered to homes at 240 V. Part A If you use the lightbulb in the United States at 120 V (assume its resistance does not change), how bright will it be relative to 75-W Electric power consumed in Europe = 75 W. But to calculate the power the same bulb would consume in the USW lightbulb in Europe, where electricity is delivered to homes at 240 $\mathrm{V}$ . If you use the lightbulb in the This means peace of two represents the lightbulb in America for the United States. So if piece of two is only one a fourth of the power in ah, Europe, that means that it's going to shine...You buy a 40 W lightbulb in Europe, where electricity isdelivered to homes at 220 V. If you use the lightbulb athome in the United States, how brightwill it be relative to 40W 110 V bulbs?

You made the error of assuming consistent current, and the e book made the mistake of assuming consistent resistance. Both are reasonably flawed.

If the resistance had been consistent, you would get half the current and one fourth the ability in the U.S. However, the resistance of a tungsten filament 3000°K is more or less 18 instances more than it is at 300°Ok. At 1/four power, the resistance would be kind of 1/Five up to it is at complete energy.

To clear up the problem as it should be, you would want to know at what temperature the filament operates with 250 vac. I'm not going to solve that for you, but I'm pretty sure your solution is a lot closer than the one in the e-book, which assumes the resistance is independent of temperature.