Question

why does a bulb get warmer than the wires that connect it to a battery?

Answer 1

Bulb contains a filament which is made up of tungsten. Tungsten has high resistivity, greater than that of the copper which makes up the wires. Hence the bulb gets warmer as compared to the wire.

Answer 2

Explanation:

Bulb contains a filament which is made up of tungsten. Tungsten has high resistivity, greater than that of the copper which makes up the wires. Hence the bulb gets warmer as compared to the wire.