Question

An electric bulb of 30 W is used for 4h per day.Calculate the 'units' of energy consumed in 30 days by the bulb.​

Answer 1

Answer:

sorry I didn't know the answer

Answer 2

Given: Power, P = 30Watt

Find: We have to calculate the units of energy consumed in 30days by the bulb.

Solution:

We have to calculate  the power in terms of kiloWatt Hour (kWH)

So we have a given condition,

$Power = 30\times 4hr\times 30days\\\\P = 3600WH$

We know that,

$1 unit = 1000WH$

so, for 3600WH units be 3.6.

So, the energy consumed in 30 days by the bulb is 3.6 units.