Question #55105
What should be the unit value, supposed that i am using 220-330 volts and 15 watt lamp for 12 hrs in a day ?
1
Expert's answer
2015-10-01T00:00:45-0400
If you only use a light bulb 15 watt for 12 hours you need 15x12 =180watt x hrs . The unit value is full payment /180watt x hrs.

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Comments

Assignment Expert
01.10.15, 11:41

Dear Sudip Hati Power* Time = Energy Consuption https://en.wikipedia.org/wiki/Electric_energy_consumption 15 W * 12 h = 180 Wh If you have  voltage V=220-330 V and current I Power = V*I*cos(2pi*omega*t) So if you have I you can calculate power

SUDIP HATI
28.09.15, 22:49

and what's meant by 220-330 Volts, 50 Hz?

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