A conducting wire of length l, area A, and resistivity ρ is ... — Physics | Mockzy

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A conducting wire of length l, area A, and resistivity ρ is connected to a battery. If the length is doubled and the area is halved, the resultant current would be:

$\frac{1}{4} \frac{ρl}{V A}$ .

$\frac{3}{4} \frac{V A}{ρl}$ .

$4 \frac{V A}{ρl}$ .

$\frac{1}{4} \frac{V A}{ρl}$ .

A part of circuit is shown with wires A (copper), B and C (manganin). The curren

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