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Electrical engineering material miscellaneous

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Electrical Engineering materials

Electrical engineering material miscellaneous
  1. In a superconductor, the electron and hole concentrations are comparable. Which one of the following conditions must be satisfied for the Hall coefficient to be positive?
    1. (Hole concentration) × (hole mobility)2 should be less than (electron concentration) × (electron mobility)2
    2. (Hole concentration) × (hole mobility)2 should be more than (electron concentration) × (electron mobility)2
    3. (Hole concentration) × (electron mobility)2 should be greater than (electron concentration) × (hole mobility)2
    4. (Hole concentration) × (electron mobility)2 should be less than (electron concentration) × (hole mobility)2
Correct Option: B

NA


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