Physics, asked by jenishkovilmani, 11 months ago

A wire of length 1m has a resistance of 2ohm .what is the resistance of second wire,whose specific resistance is double that of the first,if the length of wire 3m and diameter is double that of first?

Answers

Answered by dakshchauhan95328

Answer:

From this relation, we observe that the length is directly proportional to the resistance and the area of cross section is inversely proportional to the resistance. . So, R = 2R'. Hence, If the length of a wire is doubled, then its resistance becomes 2 times.31

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