Electrical consumption

timer Asked: Aug 30th, 2013

Question description

1.american electric plants now serve 9,500,000 homes. the estimated number of homes in the united states is 21,000,000. what percentage receives electrical energy?

2. it needs about 280,000,000 tungsten lamps (bulbs) each year to supply the market today. and yet the first lamp factory in the world the Edison lamp works. was not started until 1880, and i was told it would never pay. the output for our first year was about 25,000 globes. how many times that figure would be required for the present market?

3.A household using 21 lamps requires about 7 new lamp each year. what percentage is this?

4.if these lamps had been bought at the retail prices of the first year of the lamp factory, they would have cost $1.25 each. how much would the family save by the decreased prices of today?

to solve problem 4 use 1925 prices. that year incandescent light bulbs or lamps cost $.30 each.

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