Question

Tire or false

1 a short thick wire is the best conductor
2 if you double the thickness of a wire you cut the resistance in half
3 if you double the length of a wire you cut the resistance in half
4 when a light is first switched on the light bulbs filament has a lower resistance than after it gives off light for awhile.

Please help me on this

Answer 1

1 and 4 are tire.
2 and 3 are not.