Home
Class 10
PHYSICS
Why are the coils of electric toasters m...

Why are the coils of electric toasters made of an alloy than a pure metal ?

Text Solution

Verified by Experts

Resistivity of alloys is much more than pure metals. Hence heating of alloy `[W = I^(2) Rt]` is much more than pure metals.
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MBD -HARYANA BOARD|Exercise Short Answer Type Questions|21 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MBD -HARYANA BOARD|Exercise Long Answer Type Questions|4 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MBD -HARYANA BOARD|Exercise EXAMPLE|74 Videos

  • LIGHT:REFLECTION AND REFRACTION

    MBD -HARYANA BOARD|Exercise EXAMPLE|100 Videos

  • MANAGEMENT OF NATURAL RESOURCES

    MBD -HARYANA BOARD|Exercise LONG ANSWER TYPE QUESTIONS|3 Videos

Similar Questions

Explore conceptually related problems

What is the difference between the terms overloading and short-circuiting? Why are coils of electric heaters made of an alloy rather than a pure metal?

Explain the following : (a) Why is tungsten used almost axclusively for filament of incandescent lamp ? (b) Why are the conductors of electric heating devices, such as toaster and electric irons, made of an alloy rather than a pure metal ? ( c) Why is the series arrangement not used for domestic circuits ? (d) How does the resistance of a wire vary with its cross-sectional area ? (e ) Why are copper and aluminimum wires usually employed for electricity transmission.

Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal ?