define 1watt of power . a lamp consumes 1000J of electrical energy in 10s calculate its power.
http://en.wikipedia.org/wiki/Watt
P=E/t=1000/10 =100 W
To define 1 watt of power, we need to understand the relationship between power, energy, and time.
Power (P) is the rate at which energy is used or transferred. It is calculated by dividing the amount of energy used (E) by the time it takes to use or transfer that energy (t). Mathematically, the formula is: P = E / t.
Now, let's calculate the power consumed by the lamp using the given information. The lamp consumes 1000 joules (J) of electrical energy in 10 seconds (s).
We can substitute these values into the power formula:
P = E / t
P = 1000 J / 10 s
Dividing 1000 J by 10 s, we get:
P = 100 J/s
So, the power of the lamp is 100 joules per second or 100 watts (W).
Therefore, consuming 1000J of electrical energy in 10 seconds, the power of the lamp is 100 watts.