Question

p=40w fine=5h for 30days find energy converted =? in kWh or and in j​

Answer 1

Answer:

Explanation:   Energy= Power x time

Now power= 40 W or 4/100 kw as 1 kw = 1000w

Time: 5h and 30 days

1 day = 24 hours

so 30 days= 24x30= 720 hrs

Total time- 5+720= 725 hrs

Now we can apply our formula so energy = 725x4/100= 29 kWh ans

we can also convert it into joules as 1 kWh= 3.6 x 10 raised to power 6