PART 2!! PLEASE HELP!!

1) which of the following wires would have the least resistance? (*=Degree)

A-An aluminum wire 20cm in diameter at 40* C

B-An aluminum wire 20cm in diameter at 60* C

C-An aluminum wire 40Cm in diameter at 40*C

D-An aluminum wire 40Cm in diameter at 60*C
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2)A flashlight bulb with a potential difference of 4.5 V across it has a resistance of 8.0 ohms. How much current is in the bulb filament?

A-36 A

B-9.4 A

C-1.8 A

D-0.56 A
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