Assertion: The number of electrons in a p-typ | vedclass

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(A) According to the law of mass action,for a semiconductor,the product of the number density of electrons $(n_e)$ and holes $(n_h)$ is constant at a

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) According to the law of mass action,for a semiconductor,the product of the number density of electrons $(n_e)$ and holes $(n_h)$ is constant at a given temperature: $n_e n_h = n_i^2$,where $n_i$ is the intrinsic carrier concentration.In a $p-$type semiconductor,trivalent impurity atoms are added,which significantly increases the number of holes $(n_h > n_i)$.Since the product $n_e n_h$ must remain equal to $n_i^2$,an increase in $n_h$ leads to a decrease in the number of electrons $(n_e)$ such that $n_e = n_i^2 / n_h$. Since $n_h > n_i$,it follows that $n_e Therefore,the number of electrons in a $p-$type semiconductor is less than the number of electrons in an intrinsic (pure) semiconductor at the same temperature.Both the Assertion and the Reason are correct,and the Reason correctly explains the Assertion.

Assertion: The number of electrons in a $p-$type silicon semiconductor is less than the number of electrons in a pure silicon semiconductor at room temperature.
Reason: It is due to the law of mass action.

Similar Questions

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Assertion: The number of electrons in a $p-$type silicon semiconductor is less than the number of electrons in a pure silicon semiconductor at room temperature.Reason: It is due to the law of mass action.