Advertisements
Advertisements
प्रश्न
One kilowatt hour is equal to ............ joule.
Advertisements
उत्तर
One kilowatt hour is equal to 3.6 x 106 joule.
APPEARS IN
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 is equal to
From where does the electricity come to our home ?
What is an electric meter? Where is it fixed in our house?
What is an electric fuse? State its purpose in the household electrical circuit.
Figure shows two ways of connecting the three bulbs A, B and C to a battery. Name the two arrangements. Which of them do you prefer to use in a household circuit? Give a reason to support your answer.


Assuming the electric consumption per day to be 12 kWh and the rate of electricity to be? 6.25 per unit, find how much money is to be paid in a month of 30 days?
In a premise 5 bulbs each of 100 W, 2 fans each of 60 W, 2 A.Cs each of 1.5 kW is used for 5 h per day. Find:
- Total power consumed per day,
- Total power consumed in 30 days,
- Total electrical energy consumed in 30 days.
- The cost of electricity at the rate of ₹ 6.25 per unit.
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.
