Define power. State commercial unit and SI unit of electrical energy. An electric heater of 400 W works for 2 hours. Find the electrical energy units consumed in a day ?
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Answered by
111
hi there!
Power is defined as the rate at which work is done upon an object.
S.I. Unit of electrical energy is Joule.
kwh is the commercial until of energy.
energy consumed :-
400/1000 kwh * 2 hour = 0.8 kW h
Power is defined as the rate at which work is done upon an object.
S.I. Unit of electrical energy is Joule.
kwh is the commercial until of energy.
energy consumed :-
400/1000 kwh * 2 hour = 0.8 kW h
Answered by
1
Given:
Work done = 400
Time = 2 hrs
To Find:
The electrical energy consumed in a day.
Explanation:
Power is the amount of energy transferred or converted per unit time.
The commercial unit of energy = 1 kWh.
The SI unit of energy = Joule.
Energy Consumed will be given by-
= 400/1000 kwh × 2 hour
= 0.8 kW h
Answer - the electrical energy units consumed in a day is 0.8 kWh
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