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

Explain the following. (a) Why is the tungsten used almost exclusively for filament of electric lamps? (b) Why are the conductors of electric heating devices, such as bread-toasters 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 area of cross-section? (e) Why are copper and aluminium wires usually employed for electricity transmission?

The coil of wire in an electric heater is made up of

Why are metals good conductions of heat and electricity?

Why does not distilled water conduct electricity ?

Why does pure acetic acid not conduct electricity?

Alloys are used for electrical heating devices rather than pure metals. Give reasons.

Why the coil of a dead beat galvanometer is would on a metal frame?

Why don’t we use a metallic handle to ari electric tester ?

Which metal is the best conductor of electricity?