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प्रश्न
The unit in which we pay the cost of electricity is ..........
उत्तर
The unit in which we pay the cost of electricity is kWh.
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संबंधित प्रश्न
The electrical energy consumed in a house is measured by ...............
One kilowatt hour is equal to ............ joule.
State the purpose of kWh meter.
What is an electric fuse? State its purpose in the household electrical circuit.
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?
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 voltage of the electricity that is generally supplied to a house?
Two lamps, one rated 220 V, 50 W and the other rated 220 V, 100 W, are connected in series with mains of 220 V. Explain why does the 50 W lamp consume more power.
Two bulbs are rated 60 W, 220 V and 60 W, 110 V respectively. Calculate the ratio of their resistances.
Our body can pass electricity through it.
