Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

An electric lamp is marked 100W,220V.It is used for 5 hrs daily. Calculate (i)its rasistance,while glowing.(ii)energy consumed in KWh per day.

Asked by 28th July 2012, 9:21 PM
Answered by Expert
Answer:
(i)
resistance, R = V2/P  (because P= V2/R)
R= (220*220)/100 = 484 ohm
 
(ii)
1 kWh = 3600000J
now for the lamp, energy consumed in a day = (100*24*3600)J
                                                                       = 2.4 kWh
Answered by Expert 28th July 2012, 10:42 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp