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marishachu [46]
3 years ago
9

The electrical resistance of aire is directly proportional to its length. If a 45-foot long wire has a resistance of 9 ohm(s), f

ind the resistance of a 75-foot long wire.
What is the resistance?
ohms​
Mathematics
1 answer:
wolverine [178]3 years ago
8 0
The resistance is proportional to the length.
You know that 45/9=5
So the ratio (proportionality) is 5.
So, for a 75 ft wire, the resistance is 75/5 = 15 ohms
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