Question

The maximum resistivity among the following is of

Aluminium
Tungsten
Nichrome
Iron​

Answer 1

Explanation:

A material with high resistivity means it has got high resistance and will resist the flow of electrons. A material with low resistivity means it has low resistance and thus the electrons flow smoothly through the material. For example, Copper and Aluminium have low resistivity. Good conductors have less resistivity.

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Answer 2

The maximum resistivity among the following is of:

(C) NICHROME

- The resistivity of Aluminium metal is 2.65 × 10⁻⁸ Ω m.

- The resistivity of Tungsten metal is 5.60 × 10⁻⁸ Ω m.

- The resistivity of Nichrome metal is 1.10 × 10⁻⁶ Ω m which is the highest among the given options.

- The high resistivity is the reason that nichrome wire is used in electric heaters.

- The resistivity of Iron metal is 9.70 × 10⁻⁸ Ω m.