Advertisements
Advertisements
प्रश्न
From where does the electricity come to our home ?
Advertisements
उत्तर
In our homes electricity comes from the CITY SUBSTATION.
APPEARS IN
संबंधित प्रश्न
S.I. unit and commercial unit of electrical energy are same.
The electrical energy consumed in a house is measured by ...............
One kilowatt hour is equal to ............ joule.
What is an electric meter? Where is it fixed in our house?
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?
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.
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?
