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

The electrical resistance of metals

Why are we able to sip hot tea or milk faster from a saucer rather than a cup?

Why does the cord of an electric heater not glow while the heating element does?

An electric lamp of 100Omega , a toaster of resistance 50Omega , and a water filter of resistance 500Omega are connected in parallel to a 200V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

Why electromagnet made by soft iron explain?

What is the effect of temperature on the electrical conditon of metallic conductors?