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The resistance of a wire is proportional to its length. If 2' of an electrical wire has a resistance of 12 ohms, what is the resistance of 9' of the same wire?
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4 votes
4 votes
The resistance of a wire is proportional to its length. If 2' of an

electrical wire has a resistance of 12 ohms, what is the
resistance of 9' of the same wire?

User Renfei Song
by
2.4k points

1 Answer

13 votes
13 votes

Answer:

54

Step-by-step explanation:

R=r(L/A)

12/x = 2/9

therefore x=54

User Micah Walter
by
3.1k points
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