Physics, 27.10.2020 17:50 ejfleck3655
A second wire of the same material has the same cross section and twice the length. How far will it be stretched by the same force
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Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
Physics, 23.06.2019 02:00
Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning
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Physics, 23.06.2019 03:00
Are good conductors of heat also good conductors of electricity? explain your answer.
Answers: 2
A second wire of the same material has the same cross section and twice the length. How far will it...
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