Specific resistance of copper, silver and constantan are `(1.78 xx 10^(-6) Omega cm, 10^(-6) Omega cm and 48 xx 10^(-6) Omega cm`) respectively. Which is the best conductor and why?
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To determine which material is the best conductor among copper, silver, and constantan, we need to analyze their specific resistances (also known as resistivities). The specific resistances given are:
- Copper: \(1.78 \times 10^{-6} \, \Omega \, \text{cm}\)
- Silver: \(1.0 \times 10^{-6} \, \Omega \, \text{cm}\)
- Constantan: \(48 \times 10^{-6} \, \Omega \, \text{cm}\)
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