Question

An electric lamp of 100w is used for 5 hours per day calculate the unit of energy consumed by lamp in one day

Answer 1

Explanation:

100w×5=500w in one day is consumed

Answer 2

Given :-

• Power = 100 watt
• Power = 100 wattTime = 5 × 60 × 60 = 18000 s

To Find :-

• Energy consumed

Solution :-

Here, we will use the formula for finding energy

$\boxed{ \bf \: E = P \times T}$

E is the Energy consumed

P is the Power

T is the Time

Let's calculate

E = 100 × 18000

E = 1800000

Now,

E = 1.8 × 10⁶ Joules

Hence :-

• Energy consumed by lamp is 1.8 × 10⁶ Joules.