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प्रश्न
State and define the household unit of electricity.
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उत्तर
The household unit of electricity is kilowatt-hour (kWh).
One kilowatt-hour (kWh) is the electrical energy consumed by an electrical appliance of power 1 kW when it is used for one hour.
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संबंधित प्रश्न
S.I. unit and commercial unit of electrical energy are same.
In a household electrical circuit, the appliance are connected in ............with the mains.
One kilowatt hour is equal to ............ joule.
What is an electric meter? Where is it fixed in our house?
State the purpose of kWh meter.
The diagram below in figure shows the reading on the dials of a meter. State what is its reading.

If an appliance of power P watt is used for time t hour. How much electrical energy is consumed in kWh?
Draw a labelled diagram with the necessary switches to connect a bulb, a fan and a plug socket in a room with the mains. In what arrangement will you connect them to the mains?
What is the voltage of the electricity that is generally supplied to a house?
Sumit does 600 J of work in 10 min and Amit does 300 J of work in 20 min. Calculate the ratio of the powers delivered by them.
