Home
Class 10
PHYSICS
What is one kilowatt hour?...

What is one kilowatt hour?

Text Solution

Verified by Experts

One kilowatt. Hour is the electric energy used in one hour by an electrical appliance of power one kilowatt. It is equal to `3.6xx10^(6)` J.
Promotional Banner

Topper's Solved these Questions

  • LAWS, RULES, UNITS AND DEFINITIONS

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Heat|15 Videos
  • LAWS, RULES, UNITS AND DEFINITIONS

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Refraction of Light|22 Videos
  • LAWS, RULES, UNITS AND DEFINITIONS

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Chemical Reactions and Equations|20 Videos
  • HEAT

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise NUMERICAL PROBLEMS FOR PRACTICE|12 Videos
  • LENSES

    NAVNEET PUBLICATION - MAHARASHTRA BOARD|Exercise Numerical Problems For Practice|20 Videos

Similar Questions

Explore conceptually related problems

How many joules are there in one kilowatt-hour?

(a) What is meant by "electric power"? Write the formula for electric power in terms of potential difference and current. (b) The diagram below shows a circuit containing a lamp L, a voltmeter and an ammeter. The voltmeter reading is 3V and the ammeter reading is 0.5A. (i) What is the resistance of the lamp? (ii) What is the power of the lamp? (c) Define kilowatt-hour. How many joules are there in one kilowatt-hour? (d) Calculate the cost of operating a heater of 500 W for 20 hours at the rate of Rs 3.90 per unit.

Of which physical quantity is the unit kilowatt hour? Define one kilowatt hour. Express it in joules.

Assertion : Kilowatt hour is the unit of power. Reason: One kilowatt hour is equivalent to 3.6 xx 10^5 J

How many joules are present in 1 kilowatt hour? Also derive numerically

Assertion (A): A 1000 W bulb when used for 1 hour consumes the same number of electrical units as that of 100 W bulb that is used for 10 hours. Reason (R ) : On electrical unit is charged when one kilowatt hour electrical energy is consumed.

The mass defect in a particular nuclear reaction is 0.3 grams. The amont of energy liberated in kilowatt hours is. (Velocity of light = 3 xx 10^8 m//s ).

What is power ? How do you differentiate killowatt from kilowatt hour ? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of water falls from it in a minute. Calculate the equivalent power if all this energy can be utilized ? (g = 10 m//s^2)