Types of Semi Conductors
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365571 For a \(p\)-type semiconductor, which of the following statements is true?

1 Electrons are the majority carriers and trivalent atoms are the dopants.
2 Holes are the majority carriers and trivalent atoms are the dopants.
3 Holes are the majority carriers and pentavalent atoms are the dopants.
4 Electrons are the majority carriers and pentavalent atoms are the dopants.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365572 Hole is

1 Absence of free electrons
2 An artificially created particle
3 An anti-particle of electron
4 A vacancy created when an electron leaves a covalent bond
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365573 To a germanium crystal equal number of aluminium and indium atoms are added. Then

1 It remains an intrinstic semiconductor
2 It becomes a \(n\)- type semiconductor
3 It becomes a \(p\) - type semiconductor
4 It becomes an insulator
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365574 The impurity atoms with which pure silicon should be doped to make a \({p}\)-type semiconductor are

1 Phosphorus
2 Antimony
3 Boron
4 Silver
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365571 For a \(p\)-type semiconductor, which of the following statements is true?

1 Electrons are the majority carriers and trivalent atoms are the dopants.
2 Holes are the majority carriers and trivalent atoms are the dopants.
3 Holes are the majority carriers and pentavalent atoms are the dopants.
4 Electrons are the majority carriers and pentavalent atoms are the dopants.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365572 Hole is

1 Absence of free electrons
2 An artificially created particle
3 An anti-particle of electron
4 A vacancy created when an electron leaves a covalent bond
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365573 To a germanium crystal equal number of aluminium and indium atoms are added. Then

1 It remains an intrinstic semiconductor
2 It becomes a \(n\)- type semiconductor
3 It becomes a \(p\) - type semiconductor
4 It becomes an insulator
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365574 The impurity atoms with which pure silicon should be doped to make a \({p}\)-type semiconductor are

1 Phosphorus
2 Antimony
3 Boron
4 Silver
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365571 For a \(p\)-type semiconductor, which of the following statements is true?

1 Electrons are the majority carriers and trivalent atoms are the dopants.
2 Holes are the majority carriers and trivalent atoms are the dopants.
3 Holes are the majority carriers and pentavalent atoms are the dopants.
4 Electrons are the majority carriers and pentavalent atoms are the dopants.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365572 Hole is

1 Absence of free electrons
2 An artificially created particle
3 An anti-particle of electron
4 A vacancy created when an electron leaves a covalent bond
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365573 To a germanium crystal equal number of aluminium and indium atoms are added. Then

1 It remains an intrinstic semiconductor
2 It becomes a \(n\)- type semiconductor
3 It becomes a \(p\) - type semiconductor
4 It becomes an insulator
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365574 The impurity atoms with which pure silicon should be doped to make a \({p}\)-type semiconductor are

1 Phosphorus
2 Antimony
3 Boron
4 Silver
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365571 For a \(p\)-type semiconductor, which of the following statements is true?

1 Electrons are the majority carriers and trivalent atoms are the dopants.
2 Holes are the majority carriers and trivalent atoms are the dopants.
3 Holes are the majority carriers and pentavalent atoms are the dopants.
4 Electrons are the majority carriers and pentavalent atoms are the dopants.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365572 Hole is

1 Absence of free electrons
2 An artificially created particle
3 An anti-particle of electron
4 A vacancy created when an electron leaves a covalent bond
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365573 To a germanium crystal equal number of aluminium and indium atoms are added. Then

1 It remains an intrinstic semiconductor
2 It becomes a \(n\)- type semiconductor
3 It becomes a \(p\) - type semiconductor
4 It becomes an insulator
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS

365574 The impurity atoms with which pure silicon should be doped to make a \({p}\)-type semiconductor are

1 Phosphorus
2 Antimony
3 Boron
4 Silver