In semiconductor the concentrations of electrons and holes are 8 × 10 18 /m 3 and 5 × 10…
Physics · JEE Advanced · NTA Exams — Electronic Devices
In semiconductor the concentrations of electrons and holes are 8 × 1018/m3 and 5 × 1018/m3 respectively. If the mobilities of electrons and hole are 2.3 m2/volt-sec and 0.01 m2/volt-sec respectively, then semiconductor is
- N-type and its resistivity is 0.34 ohm-metre
- P-type and its resistivity is 0.034 ohm-metre
- N-type and its resistivity is 0.034 ohm-metre
- P-type and its resistivity is 3.40 ohm-metre
Answer
(A) N-type and its resistivity is 0.34 ohm-metre
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