Answers: 3
Physics, 22.06.2019 19:50, fili20
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
The peregrine falcon can reach speeds up to 107 m/s during a dive, how much time does it take the fa...
Mathematics, 26.02.2021 19:50
Social Studies, 26.02.2021 19:50
Mathematics, 26.02.2021 19:50
Mathematics, 26.02.2021 19:50
English, 26.02.2021 19:50