CBSE Class 10 Answered
Q8. An electric bulb is marked 18watt-240 volt. If it is used across 240 V power line for one hour daily, calculate the number of days to consume 1 unit of electric energy.
Asked by Khekaleaarya | 07 Jul, 2020, 20:35: PM
Power, P = 18 W
V = 240 V
It is given that electric bulb is used daily for 1 hour across 240 V power line.
Thus,
Electricity consumed is given as,
E = Pt
1 unit = 1 kwh = 3.6 x 106 J
3.6 x 106 = 18 x n x 1h x 60 min x 60 s
where, n = number of days
Thus,
n = 55.5 days
Answered by Shiwani Sawant | 07 Jul, 2020, 23:23: PM
Application Videos
Concept Videos
CBSE 10 - Physics
Asked by kumarakshat770 | 05 Oct, 2024, 16:01: PM
CBSE 10 - Physics
Asked by anubhutiupadhaya | 04 Mar, 2023, 15:16: PM
CBSE 10 - Physics
Asked by swetalinasamantaray022 | 20 Jan, 2023, 10:54: AM
CBSE 10 - Physics
Asked by hemaborate26 | 27 Apr, 2021, 15:42: PM
CBSE 10 - Physics
Asked by mr.bhaveshsadana | 26 Mar, 2021, 13:07: PM
CBSE 10 - Physics
Asked by 86047357aa | 07 Feb, 2021, 22:00: PM
CBSE 10 - Physics
Asked by gmsaivenkat | 06 Dec, 2020, 21:08: PM
CBSE 10 - Physics
Asked by vermakkajal330 | 17 Jul, 2020, 16:16: PM
CBSE 10 - Physics
Asked by nannappa951 | 11 Jul, 2020, 12:22: PM
CBSE 10 - Physics
Asked by Khekaleaarya | 07 Jul, 2020, 20:35: PM