Advertisements
Advertisements
प्रश्न
Define fuse.
Advertisements
उत्तर
Electric fuse is a safety device which is used in household wiring and in many appliances.
APPEARS IN
संबंधित प्रश्न
A heating coil has a resistance of 200 Ω. At what rate will heat be produced in it when a current of 2.5 A flows through it?
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. Calculate:
- the total current taken from the supply
- the resistance of each heater and
- the energy supplied in kWh to the three heaters in 5 hours.
Give Scientific reason
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster etc, an alloy such as Nichrome is used, not pure metals.
Identify the figure and give its use.

An electric bulb is connected to a 220 V generator. The current is 0.50 A. What is the power of the bulb?
Why is parallel arrangement used in domestic wiring?
What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.
What are the factors affecting heating effect of electric current?
Explain the working of an electric fuse.
In the electric equipment producing heat like iron, electric heater, boiler, toaster etc., an alloy such as nichrome is used, not pure metals.
