Question

if an electric bulb of power 40 watt is lighted at the rate of a tower for day for 15 days what word we the total unit of electric energy consumed in it​

Answer 1

Given :    t=6 hrs             

Given :    t=6 hrs                             P=0.06 kW

Given :    t=6 hrs                             P=0.06 kWThus energy consumed per day is:

Given :    t=6 hrs                             P=0.06 kWThus energy consumed per day is:E=Pt=0.06×6=0.36 kWh=0.36 units

Answer 2

Answer:

Because work is energy transfer, power is also the rate at which energy is expended. A 60-W light bulb, for example, expends 60 J of energy per second. Great power means a large amount of work or energy developed in a short time.