Advertisements
Advertisements
प्रश्न
State and define the household unit of electricity.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
In a household electrical circuit, the appliance are connected in ............with the mains.
One kilowatt hour is equal to ............ joule.
The purpose of an electric meter in a house is
If out of the two lighted bulbs in a room, one bulb suddenly fuses, then
One day the meter reading is found to be 7643 units while the next day, it was 7657 units. What is the consumption of electricity in a day?
What is an electric fuse? State its purpose in the household electrical circuit.
An electric iron of power 1.5 kW is used for 30 minutes to press the clothes. Calculate the electrical energy consumed in
- kilowatt-hour
- joule.
What is the resistance, under normal working conditions, of an electric lamp rated at '240 v, 60 W' ? If two such lamps are connected in series across a 240 V mains supply, explain why each one appears less bright.
An electrical appliance is rated as 60 W – 150 V.
How much current will flow through the appliance when in use?
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.
