Advertisements
Advertisements
Question
The purpose of an electric meter in a house is
Options
to give the cost of electricity directly
to give the consumption of electrical energy
to safeguard the circuit from short circuiting
to put on or off the mains.
Advertisements
Solution
to give the consumption of electrical energy
APPEARS IN
RELATED QUESTIONS
In a household electrical circuit, the appliance are connected in ............with the mains.
One kilowatt hour is equal to ............ joule.
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?
State the purpose of kWh meter.
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.


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 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.
Two bulbs are rated 60 W, 220 V and 60 W, 110 V respectively. Calculate the ratio of their resistances.
