Question

There are three copper wires of length and cross - sectional area [ L,A ], [2L,A/2 ], [ L/2,2A ]
In which case is the resistance minimum?
​

Answer 1

Answer:

this is the correct answers for this question

Answer 2

Answer:

R ∝ $\frac{ℓ}{A}$

So, the resistance of the wire will be minimum when the area of cross-section is maximum and length is minimum.

Hence, option C is correct.