Energy Bands and Metallic Conductors
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Questions and Answers

What type of material is called a metallic conductor?

  • A material with a smooth merge from valence band to conduction band (correct)
  • A material with permissible higher-energy levels in the valence band
  • A material with high electron mobility
  • A material with a low electron mobility

    • What is the force experienced by an electron with charge Q = −e in a field E?

  • F = 2eE
  • F = 0
  • F = eE
  • F = −eE (correct)

    • What term is used for the velocity attained by an electron in a crystalline material?

  • Drift velocity (correct)
  • Free velocity
  • Accelerated velocity
  • Static velocity

    • In which units is mobility measured?

    <p>m2/V.S</p> Signup and view all the answers

    What is the unit of electric conductivity (σ)?

    <p>(C/V.S.m)</p> Signup and view all the answers

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