Question

16. An
Electic heater of 500 watt runs for 2 hrs
pohoily ther. Find the Electical Grergy consumbed
ut in both S1 unit and comercial dinit of energy,
by ut
| Cla​

Answer 1

Answer:

SI unit :- 3600000J

Commercial unit :- 1 kWh

Explaination :-

Given

P = 500 W

t = 2 hrs = 7200 s

E = ?

In SI Unit -

We know that

E = P×T

=> E = 500 × 7200

=> E = 3600000 J Ans

Now, In Commercial Unit -

We know that

1 kWh = 3600000 J

=> E = 3600000 J = 1 kWh Ans