In the stairwell of a 10-storey building, there are two continuously used 75watt safety lamps in one year. How much will it cost for the entire year if the electricity charge is 0.078 cents/kW-hr ? А. 500 РHP В. 900 РHP С. 750 РHP D. 1025 PHP

In the stairwell of a 10-storey building, there are two continuously used 75watt safety lamps in one year. How much will it cost for the entire year if the electricity charge is 0.078 cents/kW-hr ? А. 500 РHP В. 900 РHP С. 750 РHP D. 1025 PHP

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter21: Alternating-Current Circuits And Electromagnetic Waves

Section: Chapter Questions

Problem 1P: (a) What is the resistance of a light bulb that uses an average power of 75.0 W when connected to a...

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In the stairwell of a 10-storey building, there are two continuously used 75watt safety
lamps in one year. How much will it cost for the entire year if the electricity charge is
0.078 cents/kW-hr ?
А. 500 РHP
В. 900 РHP
С. 750 РHР
D. 1025 PHР

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