Question

Observe the given table

Material Resistivity (Ωm)

K 6.84 x 10‒8

L 1.62 x 10‒8

M 5.20 x 10‒8

N 2.63 x 10‒8

Good conductor of electricity among these material is​

Answer 1

Answer:

The material L 1.62 x 10⁻⁸Ω−m is the best conductor of electricity among them.

Explanation:

From the above options we see that of all the materials, L has the lowest resistivity (1.62 x 10⁻⁸Ω−m).

This means that L material offers the least resistance to the flow of current through it and thus it is the best conductor of electricity.

What is resistance:

• The resistance of a wire or component indicates how difficult it is to pass current through it.
• The resistivity determines the resistance.

What is resistivity:

• The resistivity of a wire or other electrical component is a property of the material used to make it, whereas the resistance is a property of the wire or component.

Answer 2

Answer:
Hence, the best conductor would be material L, with ρ = 1.62 × 10⁻⁸ Ω-m

Explanation:

• The resistivity of an electrical component is a property of the material used to make it.
• It is a measure of how strongly the material opposes the flow of current.
• Commonly represented by the Greek symbol rho (ρ), its SI unit is Ω-m (ohm-metre).
• Thus, conductors have low resistivity, while insulators have high resistivity.
• Hence, in this case, material L, with ρ = 1.62 × 10⁻⁸ has the lowest resistivity, i.e., is the best conductor
  
  

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