Advertisements
Advertisements
Question
What is an electric fuse? State its purpose in the household electrical circuit.
Advertisements
Solution
An electric fuse is a device which is used to limit the current in an electric circuit. It safeguards the circuit and appliances connected to the circuit from being damaged if the current in the circuit exceeds the specified value due to voltage fluctuations or short-circuiting.
APPEARS IN
RELATED QUESTIONS
S.I. unit and commercial unit of electrical energy are same.
The unit in which we pay the cost of electricity is ..........
The electrical energy consumed in a house is measured by ...............
In a household electrical circuit, the appliance are connected in ............with the mains.
The purpose of an electric meter in a house is
From where does the electricity come to our home ?
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?
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.
