Question

(1) When the length of a conductor is increased to double, then its
resistivity_______-​

Answer 1

Answer:

the resistance of a conductor is directly proportional to its length. so if length is increased then resistivity increases ande vice versa. so if length is doubled resistance will also get doubled i.e resistance is 4 times that of original resistance.

Explanation:

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Answer 2

Answer:

Then, the conductor is directly proportional to its length.