Question

Define power derive its si unit an electric bulb is rated 15 watts what does it mean what is the energy consumed in joules if it is used for 10 minutes

Answer 1

Power is the rate of doing work per time unit

Deriving it's SI unit
work/time.
joules/second=watt

this means that the bulb consumes 15 joules of energy in a second

now ATQ
POWER=15
TIME=60sec
work=?
as we know
power = work /time
so work = 15×60
work done = 900 joules

plz mark as brainliest if it helped u

Answer 2

Answer:

Defining Power

Power is defined as the rate of doing work.

Deriving it's SI unit

Powe = Work done/Time taken

= Energy consumed/Time taken

= Joule/Second

= Watt

An electric bulb is rated 15W.It means that the bulb consumes 15 joules of energy per second.

Power=15 joules

Time=10 minutes

Work done=?

but,

Power= Work done/Time taken

15 joules=Work done/10 minutes

15 joules= Work done/600 seconds

Work done=600 x 15

Work done=9000 Joules