Question

Please help Q9......... Fast

Answer 1

A is of greater length since Instantaneous resistance of A is greater than that of B and resistance increases with increase in length

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Answer 2

$heya$
We know that,
R=ρl/A
-Resistance is inversely proportional to area.
-Area is proportional to the diameter of the wires.
As resistivity and length are the same( given),

Resistance of wire A has a higher slope. Thus, wire B is more thicker than wire A

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