in household , 5 tube lights of 40W each are used for 5 hours and electric press of 500w For 4 hours every day . calculate the total electrical energy consumed by the tube lights and press in a month of 30 days

Open in App

Solution

we know that energy is given as
E = P x t
now,
total energy used by 5 tube lights in 30 days
E₁ = 5 x 40 x 5 x 30 = 30000 Wh = 30 kWh
and
total energy used by an electric press
E₂ = 1 x 500 x 4 x 30 = 60000 Wh = 60 kWh
thus, total energy consumed
E = E₁ + E₂ = 30 kWh + 60kWh
so,
E = 90 kWh

Suggest Corrections

Similar questions

Q. There are

5

tube-lights each of

40 W

in a house. These are used on an average for

5

hours per days In addition, there is an immersion heater of

500 W

used on an average for

1

hour per day. The number of electricity are consumed in a month is.

In a house two 60 Watt bulbs are lighted for 4 hours, and three 100 watt bulbs for 5 hours everyday. calculate the electric energy consumed in 30 days.

plz tell me that 30 days will be changed to hour or not

Q. An electrical appliance of

500 W

is used for

2

hours per day. Calculate the energy consumed in a day.

An electrical appliance of 500 W is used for 5 hours per day. Energy consumed in a day will be:

Q. In a house two 60 W electric bulbs are lighted for 4 hours, and three 100 W bulbs for 5 hours everyday. Calculate the electric consumed in 30 days.

Join BYJU'S Learning Program

in household , 5 tube lights of 40W each are used for 5 hours and electric press of 500w For 4 hours every day . calculate the total electrical energy consumed by the tube lights and press in a month of 30 days

we know that energy is given asE = P x tnow,total energy used by 5 tube lights in 30 daysE1 = 5 x 40 x 5 x 30 = 30000 Wh = 30 kWhandtotal energy used by an electric pressE2 = 1 x 500 x 4 x 30 = 60000 Wh = 60 kWhthus, total energy consumedE = E1 + E2 = 30 kWh + 60kWhso,E = 90 kWh

we know that energy is given as
E = P x t
now,
total energy used by 5 tube lights in 30 days
E₁ = 5 x 40 x 5 x 30 = 30000 Wh = 30 kWh
and
total energy used by an electric press
E₂ = 1 x 500 x 4 x 30 = 60000 Wh = 60 kWh
thus, total energy consumed
E = E₁ + E₂ = 30 kWh + 60kWh
so,
E = 90 kWh