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3 years ago

4. ¿Cuál es la resistencia de un alambre de

Chemistry

1 answer:

Artemon [7]3 years ago

5 0

Answer:

R=0.0438 Ω

Explicación:

1) Hallar el área o sección del conductor de cobre, usando esta fórmula:

A=π.r² (Pi x radio al cuadrado)

Debido a que conocemos el diámetro (1.5mm) su radio es la mitad de esto es decir 0.75mm, y lo sustituimos en la fórmula:

A=π.(0.75mm)²

A=π(0.5625mm²)

A=1.7671mm²

2) La resistividad del cobre es: rho = 0,0172 y la incluimos en la fórmula siguiente:

R=p

R=0,0172Ω x

Simplificamos:

El resultado es:

R=0.0438 Ω

Explanation:

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