# an electric heater is rated 1500 w. how much energy does it use in 10 hours?

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## An electric heater is rated 1500 W . How much energy does it use in 10 hours ?

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Question

## An electric heater is rated 1500 W. How much energy does it use in 10 hours ?

**A**

## 25kWh

**B**

## 10kWh

**C**

## 15kWh

**D**

## 12kWh

Easy Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is C)

**Correction option: C**

**Hint:**Energy consumed = Power × Time

**Explanation for correct option:**

**Step 1: Find the energy consumes by the electric heater.**

Power rating of the heater (P) = 1500

P= 1.5 kW = 1500 W

Time for which the heater has operated (T) = 10 h

Work done = Energy consumed by the heater

**∴ Energy consumed = Power ×**

**Time**

Energy consumed = 1500 × 10

Energy consumed = 15000 W

**Hence, the energy consumed by the heater in 10h is 15kWh.**

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## An electric heater is rated 1500 W. How much energy does it use in 10 hours?

An electric heater is rated 1500 W. How much energy does it use in 10 hours?

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An electric heater is rated 1500 W. How much energy does it use in 10 hours?

Question

An electric heater is rated 1500 W. How much energy does it use in 10 hours?

Open in App Solution

**Step 1: Given data**

The power of the electric heater is,

P=1500 watt. Time of use,

t=10 hours =36000 seconds.

**Step 2: Power**

Power is the energy consumed by a heater in a unit of time.

Power is defined by the form,** **

P=Et

, where **E** is the energy and **t** is the total time.

**Step 3: Calculation of heat energy**

Now from the formulae,

P=Et . E=P×t=1500×36000 or E=54×106 joule

**The energy used by the heater in 10 hours is**

54×106 joule. Suggest Corrections 38

SIMILAR QUESTIONS

**Q.**Question 14

An electric heater is rated 1500 W. How much energy does it use in 10 hours?

**Q.**An electric heater is rated 1500 W. How much energy does it use in 10 hours?

**Q.**An electric heater is rated

1500 W

. How much energy does it use in

10 h o u r s ?

**Q.**

an electric heater is rated 1500w. how much energy does it use in 10 hrs.express your answer kwt and joules.

**Q.**

An electric heater of power 3 kW is used for 10 hours. How much energy does it consume? Express your answer in (i) kWh, (ii) joule.

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## An electric heater is rated 1500W. How much energy does it use in 10 hours ?

Energy consumed by an electric heater can be obtained with the help of the expression, P = W/T Where, Power rating of the heating, P= 1500 W = 1.5 W Time for which the heater has operated, T = 10 h Work done = Energy consumed by the heater Therefore, energy consumed = Power xx Time = 1.5 xx 10 = 15 kWh Hence, the energy consumed by the heater in 10 h is 15 kWh.

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An electric heater is rated 15...

An electric heater is rated 1500W. How much energy does it use in 10 hours ?

Updated On: 27-06-2022

00 : 30

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Text Solution Open Answer in App Answer

The correct Answer is 15 kWh (Unit)

Solution

Energy consumed by an electric heater can be obtained with the help of the expression,

P = W/T Where,

Power rating of the heating,

P=1500W=1.5W P=1500W=1.5W

Time for which the heater has operated,

T=10h T=10h

Work done = Energy consumed by the heater

Therefore, energy consumed = Power

× × Time =1.5×10=15kWh =1.5×10=15kWh

Hence, the energy consumed by the heater in 10 h is 15 kWh.

Answer

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

Transcript

an electric heater is rated 1500 watt how much energy does it use in 10 hour so we have given power which is 1500 watt and time taken it 10 hours so as we know power is basically energy consumed Upon Time taken ok power is Total energy consume upon total time taken so what will be energy consumed energy consumed energy consumed will be

power into time taken 1502 time is 10 hour so it will be 1000 watt hour why its unit is what our because energy power is in what and time is in our solar energy consumed 15000 watt hour so now we will we can also write it in the form of kilowatt hour which is commercial unit arduino if we want to convert it in kilowatt hour then we have to divide it by housing ok so then it will be come kilowatt I'm

so it will be 15 kilowatt hour show energy consumed 15 kilowatt hour and kilowatt is our commercial unit ok thank you

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