Science
Explain the following:
Why are the conductors of electric heating devices, such as bread-toasters and electric irons, made of an alloy rather than a pure metal?
Current Electricity
2 Likes
Answer
Resistivity of an alloy is generally higher than that of its constituent metals. Alloys do not oxidize (burn) readily at high temperatures. For this reason, they are commonly used in electrical heating devices like electric iron, toasters etc.
Answered By
1 Like
Related Questions
An electric heater of resistance 8 Ω draws 15 A from the service mains 2 hours. Calculate the rate at which heat is developed in the heater.
Explain the following:
Why is the tungsten used almost exclusively for filament of electric lamps?
Explain the following:
Why is the series arrangement not used for domestic circuits?
Explain the following:
How does the resistance of a wire vary with its area of cross-section?