In a household 5 tubelights of 40 W each are used for 5 hours and an electric press of 500 W for 4 hours everyday . Calculate the total electrical energy consumed by the tubelights and press in a month of 30 days.
Answers
Answer:
Here is ur answer:
5 bulbs of 40W each used for 5hr : 5*40w*5/1000
therefore 5*40*5/1000= 1000/1000=1kwh
electric press for 4 hr and 500w : 4*500*1/1000=2kwh
total energy for 30 days : 1*30 =30 units for bulbs
total energy for electric press for 30 days :2*30=60 units
total energy = 30+60=90units
Explanation:
5 tube of 40w each =40×5=200w/h
=200÷1000uwh
=0.2uwh
⇒ Electric press of 500w=500×4=2000w/h
=2uw
Now,
⇒ Power consumption of 5 tuber in 30 days =(30×0.2)
=6uwh
⇒ Power consumption of 1 press in 30 days =(30×0.2)
=60uwh
⇒ Total energy consumption by tube lights and press in 30 days =(60+6)
=66uwh
Hence, the answer is 66 units.