Question

among copper bronze and nichrome which material is best suited in transmission lines?Explain in terms of resistance and current

Answer 1

The resistivity at 20°C of copper bronze and nichrome is given below:

Copper - 1.7 x 10⁻⁸ Ωm

Bronze - 2.4 x 10⁻⁷ Ωm

Nichrome - 1.1 x 10⁻⁶ Ωm

Hence we can see the copper offers least resistance to current. we know that,

current , I = voltage/resistance

hence copper will carry the highest current for a given voltage.

Hence among copper, bronze and nichrome , COPPER is best suited for transmission lines.