First you need to know the formula for resistance, which is:
[tex]R=[/tex] ρ [tex]\frac{L}{A} [/tex] --- (A)
Where,
ρ = Resistivity
L = length
A = Area
ρ = Resistivity of tungsten = 5.28 x [tex]10^{-8}[/tex] Ωm
L = Length = 4.5 m
A = Area = 0.55 * [tex]10^{-3}[/tex] * π
Plug-in the values in equation(A), you would get:
[tex]Resistance = \frac{5.28 *10^{-8} * 4.5}{0.55 * 10^{-3} * \pi } [/tex]
[tex]Resistance = 1.375 * 10^{-4} [/tex]Ω
