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Question
use the drop - down menus to complete the sentences. a thin wire has resistance than a thick wire. a short wire has resistance than a long wire. a warm wire has resistance than a cool wire.
Step1: Consider cross - sectional area effect
Resistance is inversely proportional to cross - sectional area. A thin wire has smaller cross - sectional area, so more resistance.
Step2: Consider length effect
Resistance is directly proportional to length. A short wire has less length, so less resistance.
Step3: Consider temperature effect
For most conductors, resistance increases with temperature. A warm wire has higher temperature, so more resistance.
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