Advertisements
Advertisements
प्रश्न
What is an electric fuse? State its purpose in the household electrical circuit.
Advertisements
उत्तर
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
संबंधित प्रश्न
The unit in which we pay the cost of electricity is ..........
In a household electrical circuit, the appliance are connected in ............with the mains.
The purpose of an electric meter in a house is
State the purpose of kWh meter.
If an appliance of power P watt is used for time t hour. How much electrical energy is consumed in kWh?
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.


State and define the household unit of electricity.
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?
Sumit does 600 J of work in 10 min and Amit does 300 J of work in 20 min. Calculate the ratio of the powers delivered by them.
