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प्रश्न
Define fuse.
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उत्तर
Electric fuse is a safety device which is used in household wiring and in many appliances.
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संबंधित प्रश्न
Why are the coils of electric irons and electric toasters made of an alloy rather than a pure metal?
The elements of electrical heating devices are usually made of:
(a) tungsten
(b) bronze
(c) nichrome
(d) argon
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.
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Which of the following substance contracts on heating?
What is used to turn off the sudden increase in current in the electrical circuit of the house nowadays?
Heating effect of current is called ______
The heating element of an electric iron is made up of:
Explain why fuse wire is always connected in a series arrangement.
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