An experimental tungsten light bulb filament has a length of 5 cm and a diameter of 0.074 cm. the filament is basically just a wire that heats due to resistance to electrical current. the ends of the wire are not exposed. the total filament emissivity is 0.300 and its temperature is 3068 k. calculate the power emitted by the lamp in watts. note: required precision is 1%.
Answers: 1
Physics, 21.06.2019 23:20, ElizabethF
Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
Answers: 3
Physics, 22.06.2019 11:30, Gigglygoose4181
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
Answers: 1
Physics, 22.06.2019 17:30, janicemaxwell123
Does heating a metal wire increase or decrease its electrical resistance? why?
Answers: 1
An experimental tungsten light bulb filament has a length of 5 cm and a diameter of 0.074 cm. the fi...
Chemistry, 23.10.2021 03:10
History, 23.10.2021 03:10
English, 23.10.2021 03:10