At elevated temperature, few of covalent bonds of Si or Ge are broken and a vacancy in…
Physics · JEE Main · NTA Exams — Electronic Devices
At elevated temperature, few of covalent bonds of Si or Ge are broken and a vacancy in the bond is created. Effective charge of vacancy or hole is :
- positive
- negative
- neutral
- sometimes positive and sometimes negative
Answer
(A) positive
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