318790
The electrical conductivity of semiconductors
1 Decreases with temperature
2 Increases with temperature
3 Remains constant on heating
4 Cannot be predicted
Explanation:
Electrical conductivity of semiconductors increases with increase in temperature because more electrons can jump to the conduction band.
CHXII01:THE SOLID STATE
318791
Assertion : Semiconductors are solids with conductivities in the intermediate range from \(10^{-6}-10^{4} \mathrm{ohm}^{-1} \mathrm{~m}^{-1}\). Reason : Intermediate conductivity in semiconductor is due to partially filled valence band.
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:
Conceptual Questions
CHXII01:THE SOLID STATE
318792
Which of the following is true about the charge acquired by p-type semiconductors?
1 Positive
2 Neutral
3 Negative
4 Depends on concentration of impurity
Explanation:
A p-type material is electrically neutral as there are only holes and no extra electrons.
CHXII01:THE SOLID STATE
318793
With which one of the following element silicon should be doped so as to give \(p\)-type semiconductor?
1 As
2 \(\mathrm{Se}\)
3 B
4 \(\mathrm{Ge}\)
Explanation:
Silicon should be doped with Group 13 element to give a \(p\)-type semiconductor.
CHXII01:THE SOLID STATE
318794
Match the columns Column I Column II A Mg in solid state P p - Type semiconductor B \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\) in molten state Q n-Type semiconductor C Silicon with phosphorous R Electrolytic conductors D Germanium with boron S Electronic conductors
318790
The electrical conductivity of semiconductors
1 Decreases with temperature
2 Increases with temperature
3 Remains constant on heating
4 Cannot be predicted
Explanation:
Electrical conductivity of semiconductors increases with increase in temperature because more electrons can jump to the conduction band.
CHXII01:THE SOLID STATE
318791
Assertion : Semiconductors are solids with conductivities in the intermediate range from \(10^{-6}-10^{4} \mathrm{ohm}^{-1} \mathrm{~m}^{-1}\). Reason : Intermediate conductivity in semiconductor is due to partially filled valence band.
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:
Conceptual Questions
CHXII01:THE SOLID STATE
318792
Which of the following is true about the charge acquired by p-type semiconductors?
1 Positive
2 Neutral
3 Negative
4 Depends on concentration of impurity
Explanation:
A p-type material is electrically neutral as there are only holes and no extra electrons.
CHXII01:THE SOLID STATE
318793
With which one of the following element silicon should be doped so as to give \(p\)-type semiconductor?
1 As
2 \(\mathrm{Se}\)
3 B
4 \(\mathrm{Ge}\)
Explanation:
Silicon should be doped with Group 13 element to give a \(p\)-type semiconductor.
CHXII01:THE SOLID STATE
318794
Match the columns Column I Column II A Mg in solid state P p - Type semiconductor B \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\) in molten state Q n-Type semiconductor C Silicon with phosphorous R Electrolytic conductors D Germanium with boron S Electronic conductors
318790
The electrical conductivity of semiconductors
1 Decreases with temperature
2 Increases with temperature
3 Remains constant on heating
4 Cannot be predicted
Explanation:
Electrical conductivity of semiconductors increases with increase in temperature because more electrons can jump to the conduction band.
CHXII01:THE SOLID STATE
318791
Assertion : Semiconductors are solids with conductivities in the intermediate range from \(10^{-6}-10^{4} \mathrm{ohm}^{-1} \mathrm{~m}^{-1}\). Reason : Intermediate conductivity in semiconductor is due to partially filled valence band.
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:
Conceptual Questions
CHXII01:THE SOLID STATE
318792
Which of the following is true about the charge acquired by p-type semiconductors?
1 Positive
2 Neutral
3 Negative
4 Depends on concentration of impurity
Explanation:
A p-type material is electrically neutral as there are only holes and no extra electrons.
CHXII01:THE SOLID STATE
318793
With which one of the following element silicon should be doped so as to give \(p\)-type semiconductor?
1 As
2 \(\mathrm{Se}\)
3 B
4 \(\mathrm{Ge}\)
Explanation:
Silicon should be doped with Group 13 element to give a \(p\)-type semiconductor.
CHXII01:THE SOLID STATE
318794
Match the columns Column I Column II A Mg in solid state P p - Type semiconductor B \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\) in molten state Q n-Type semiconductor C Silicon with phosphorous R Electrolytic conductors D Germanium with boron S Electronic conductors
318790
The electrical conductivity of semiconductors
1 Decreases with temperature
2 Increases with temperature
3 Remains constant on heating
4 Cannot be predicted
Explanation:
Electrical conductivity of semiconductors increases with increase in temperature because more electrons can jump to the conduction band.
CHXII01:THE SOLID STATE
318791
Assertion : Semiconductors are solids with conductivities in the intermediate range from \(10^{-6}-10^{4} \mathrm{ohm}^{-1} \mathrm{~m}^{-1}\). Reason : Intermediate conductivity in semiconductor is due to partially filled valence band.
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:
Conceptual Questions
CHXII01:THE SOLID STATE
318792
Which of the following is true about the charge acquired by p-type semiconductors?
1 Positive
2 Neutral
3 Negative
4 Depends on concentration of impurity
Explanation:
A p-type material is electrically neutral as there are only holes and no extra electrons.
CHXII01:THE SOLID STATE
318793
With which one of the following element silicon should be doped so as to give \(p\)-type semiconductor?
1 As
2 \(\mathrm{Se}\)
3 B
4 \(\mathrm{Ge}\)
Explanation:
Silicon should be doped with Group 13 element to give a \(p\)-type semiconductor.
CHXII01:THE SOLID STATE
318794
Match the columns Column I Column II A Mg in solid state P p - Type semiconductor B \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\) in molten state Q n-Type semiconductor C Silicon with phosphorous R Electrolytic conductors D Germanium with boron S Electronic conductors
318790
The electrical conductivity of semiconductors
1 Decreases with temperature
2 Increases with temperature
3 Remains constant on heating
4 Cannot be predicted
Explanation:
Electrical conductivity of semiconductors increases with increase in temperature because more electrons can jump to the conduction band.
CHXII01:THE SOLID STATE
318791
Assertion : Semiconductors are solids with conductivities in the intermediate range from \(10^{-6}-10^{4} \mathrm{ohm}^{-1} \mathrm{~m}^{-1}\). Reason : Intermediate conductivity in semiconductor is due to partially filled valence band.
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:
Conceptual Questions
CHXII01:THE SOLID STATE
318792
Which of the following is true about the charge acquired by p-type semiconductors?
1 Positive
2 Neutral
3 Negative
4 Depends on concentration of impurity
Explanation:
A p-type material is electrically neutral as there are only holes and no extra electrons.
CHXII01:THE SOLID STATE
318793
With which one of the following element silicon should be doped so as to give \(p\)-type semiconductor?
1 As
2 \(\mathrm{Se}\)
3 B
4 \(\mathrm{Ge}\)
Explanation:
Silicon should be doped with Group 13 element to give a \(p\)-type semiconductor.
CHXII01:THE SOLID STATE
318794
Match the columns Column I Column II A Mg in solid state P p - Type semiconductor B \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\) in molten state Q n-Type semiconductor C Silicon with phosphorous R Electrolytic conductors D Germanium with boron S Electronic conductors
