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MHT CET 2020 (19 Oct, Shift 2) · Intrinsic & Extrinsic Semiconductors

Intrinsic & Extrinsic Semiconductors question from MHT CET 2020 (19 Oct, Shift 2)

Q41MHT CET 2020 · 19 OCT · SHIFT 2Easy

Intrinsic & Extrinsic Semiconductors

In an intrinsic semiconductor, at an ordinary temperature, the correct relation between the number of electrons per unit volume $n_e$ and number of holes per unit volume $n_h$ .

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Answer: (a)

Thermal breaking of each covalent bond creates one electron and one hole.
So $n_e = n_h$ , both non-zero at ordinary temperature.
So the answer is (a) $n_e = n_h$ .

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