an electric bulb marked 60 watt is used for 5 hours in a week what is the cost of electricity if the rate is rupees 3 per unit
RohanMylo:
listen according to the question i have Posted what is the answer
??
6.3 rupees
0.9 is wrong ??
no , its wrong
use E = Power(P) * Time(T).
This will give your one day unit
according to your questions it was used for a week(7 days)
Energy (of one day) * 7. This will give you energy of 7 day
To calculate cost , you know for one day it costs 3rupees so, for Energy used for 7 days cost will be energy of 7days * 3 rupees
Answers
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1
for 1 week
60*5*7 that is 2100 watts
convert it into kwh or units.( both are same)
2100÷1000 that is 2.1 units
multiply it by 3
tor answer is ₹6.3
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