PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365193
In semiconductors the forbidden energy gap between Valence band and Conduction band is of the order of
1 \(1\,eV\)
2 \(5\,eV\)
3 \(1\,keV\)
4 \(1\,MeV\)
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365194
The forbidden energy band gap in conductors, semiconductors and insulators are \(E{G_1},E{G_2},\) and \(E{G_3}\) respectively. The relation among them is
1 \(E{G_1} < E{G_2} < E{G_3}\)
2 \(E{G_1} = E{G_2} = E{G_3}\)
3 \(E{G_1} < E{G_2} > E{G_3}\)
4 \(E{G_1} > E{G_2} > E{G_3}\)
Explanation:
In insulators, the forbidden energy gap is very large, in case of semiconductor it is moderate and in conductors the energy gap is zero.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365195
The energy gap in case of which of the following is less than 3\(eV\)?
1 Aluminium
2 Iron
3 Germanium
4 Copper
Explanation:
Since germanium is a semiconductor, its energy gap is less than 3 \(eV\).
KCET - 2018
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365196
Assertion : Silicon is preferred to germanium for making semiconductor devices. Reason : The energy gap for germanium is more than the energy gap of silicon.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The energy gap \(\left(E_{g}\right)\) for germanium is smaller at \(0.72\,eV\), while silicon has a larger energy gap of \(1.1\,eV\). This distinction makes silicon the preferred choice over germanium for manufacturing semiconductor devices. So correct option is (3).
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365193
In semiconductors the forbidden energy gap between Valence band and Conduction band is of the order of
1 \(1\,eV\)
2 \(5\,eV\)
3 \(1\,keV\)
4 \(1\,MeV\)
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365194
The forbidden energy band gap in conductors, semiconductors and insulators are \(E{G_1},E{G_2},\) and \(E{G_3}\) respectively. The relation among them is
1 \(E{G_1} < E{G_2} < E{G_3}\)
2 \(E{G_1} = E{G_2} = E{G_3}\)
3 \(E{G_1} < E{G_2} > E{G_3}\)
4 \(E{G_1} > E{G_2} > E{G_3}\)
Explanation:
In insulators, the forbidden energy gap is very large, in case of semiconductor it is moderate and in conductors the energy gap is zero.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365195
The energy gap in case of which of the following is less than 3\(eV\)?
1 Aluminium
2 Iron
3 Germanium
4 Copper
Explanation:
Since germanium is a semiconductor, its energy gap is less than 3 \(eV\).
KCET - 2018
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365196
Assertion : Silicon is preferred to germanium for making semiconductor devices. Reason : The energy gap for germanium is more than the energy gap of silicon.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The energy gap \(\left(E_{g}\right)\) for germanium is smaller at \(0.72\,eV\), while silicon has a larger energy gap of \(1.1\,eV\). This distinction makes silicon the preferred choice over germanium for manufacturing semiconductor devices. So correct option is (3).
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PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365193
In semiconductors the forbidden energy gap between Valence band and Conduction band is of the order of
1 \(1\,eV\)
2 \(5\,eV\)
3 \(1\,keV\)
4 \(1\,MeV\)
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365194
The forbidden energy band gap in conductors, semiconductors and insulators are \(E{G_1},E{G_2},\) and \(E{G_3}\) respectively. The relation among them is
1 \(E{G_1} < E{G_2} < E{G_3}\)
2 \(E{G_1} = E{G_2} = E{G_3}\)
3 \(E{G_1} < E{G_2} > E{G_3}\)
4 \(E{G_1} > E{G_2} > E{G_3}\)
Explanation:
In insulators, the forbidden energy gap is very large, in case of semiconductor it is moderate and in conductors the energy gap is zero.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365195
The energy gap in case of which of the following is less than 3\(eV\)?
1 Aluminium
2 Iron
3 Germanium
4 Copper
Explanation:
Since germanium is a semiconductor, its energy gap is less than 3 \(eV\).
KCET - 2018
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365196
Assertion : Silicon is preferred to germanium for making semiconductor devices. Reason : The energy gap for germanium is more than the energy gap of silicon.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The energy gap \(\left(E_{g}\right)\) for germanium is smaller at \(0.72\,eV\), while silicon has a larger energy gap of \(1.1\,eV\). This distinction makes silicon the preferred choice over germanium for manufacturing semiconductor devices. So correct option is (3).
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365193
In semiconductors the forbidden energy gap between Valence band and Conduction band is of the order of
1 \(1\,eV\)
2 \(5\,eV\)
3 \(1\,keV\)
4 \(1\,MeV\)
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365194
The forbidden energy band gap in conductors, semiconductors and insulators are \(E{G_1},E{G_2},\) and \(E{G_3}\) respectively. The relation among them is
1 \(E{G_1} < E{G_2} < E{G_3}\)
2 \(E{G_1} = E{G_2} = E{G_3}\)
3 \(E{G_1} < E{G_2} > E{G_3}\)
4 \(E{G_1} > E{G_2} > E{G_3}\)
Explanation:
In insulators, the forbidden energy gap is very large, in case of semiconductor it is moderate and in conductors the energy gap is zero.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365195
The energy gap in case of which of the following is less than 3\(eV\)?
1 Aluminium
2 Iron
3 Germanium
4 Copper
Explanation:
Since germanium is a semiconductor, its energy gap is less than 3 \(eV\).
KCET - 2018
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365196
Assertion : Silicon is preferred to germanium for making semiconductor devices. Reason : The energy gap for germanium is more than the energy gap of silicon.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
The energy gap \(\left(E_{g}\right)\) for germanium is smaller at \(0.72\,eV\), while silicon has a larger energy gap of \(1.1\,eV\). This distinction makes silicon the preferred choice over germanium for manufacturing semiconductor devices. So correct option is (3).