Question

What should be the length of a wire of resistance 4.5 ohm, if the length of a similar wire is 60 cm and resistance 2.5 ohm.

Please solve and mention the steps!! (20 points)

Answer 1

Hi Priyanka !
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Resistance of 60 cm wire = 2.5 Ω
Resistance per m              =  25/6 ohm per meter 
So the length of wire of 4.5 ohm resistance = 4.5/25/6
                                                                           =1.08 m
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Answer 2

ur ans is in this pic

hope this helps you...^_^

plz mrk as brainliest...(^_^)