How long is a tungsten wire if it has a diameter of 0.191 × 10 − 3 m and a resistance of 3210 Ω ? The resistivity of tungsten is 5.62 × 10 − 8 Ω ⋅ m .

Length of the tungsten = 1636.4 m

Explanation:

Let's first find the cross sectional area of the wire:

Area =

Area =

Area =    m^2

We can solve for the length using the equation of resistance:

Resistance = Resistivity * Length / Area

Length = 1636.4 m

learn it on the intertant so you can solve

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