1.

What will be the length of a nichrome wireof resistance 5.012, if the length of similar wire of 120cm has resistance of 2.5 22? Why?

Answer»

2.4 m is the correct answer of the given question

Resistance =5 ohm, length of wire=120cm=1.2m , another wire= 2 .5 ohms ; S=2.5/1.2×l; l=5×1.2/2.5=2.4m l(2)=240 cm=2.4 m



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