The electrical resistance (R) of a wire at any given temperature varies directly to the length (L). At a certain temperature, a 100-meters long wire has a resistance of 12.5 ohms. In the same condition, what is the electrical resistance of a wire 250meters long?
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Step-by-step explanation:
We have been given that the Resistance of a 100 m long wire at a certain temperature is 12.5
The relation for Resistance of a wire is given by:-
Here:-
This relation holds true at a certain temperature.
Resistance is directly proportional to the length of the wire. If the length is changed then the resistance changes as well.
Resistance in a 250 metres long wire will be:-
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