Metallurgical Engineering > GATE 2020 > Zone Refining
Zone refining of Si results in residual P content of 0.1 parts per billion by weight. The electrical conductivity of this zone refined Si is _______ Ω⁻¹⋅m⁻¹ (round off to two decimal places).
Given:
1. Avogadro number is 6.02 × 10²³.
2. Density of Si is 2.33 g⋅cm⁻³
3. Atomic weight of P is 30.97.
4. Charge of electron is 1.6 × 10⁻¹⁹ A⋅s
5. Mobility of electron is 0.2 m²⋅V⁻¹⋅s⁻¹
Given:
1. Avogadro number is 6.02 × 10²³.
2. Density of Si is 2.33 g⋅cm⁻³
3. Atomic weight of P is 30.97.
4. Charge of electron is 1.6 × 10⁻¹⁹ A⋅s
5. Mobility of electron is 0.2 m²⋅V⁻¹⋅s⁻¹
Correct : 0.15
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