Science, asked by thekjazz2120, 6 months ago

A metal wire of resistance R is stretched to double its length , ratio of its original resistance to that of its new resistance R/R' is;

Answers

Answered by radhaganeshmoorthy

Answer:

when the wire is stretched to double the length ,the area of cross section gets reduced to half .so when the wire is stretched ,the resistance multiples by four times.

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A metal wire of resistance R is stretched to double its length , ratio of its original resistance to that of its new resistance R/R' is;​

Answers

A metal wire of resistance R is stretched to double its length , ratio of its original resistance to that of its new resistance R/R' is;