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12th ICSE
IMPORTANT
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If the hole concentration in a semiconductor is greater than the electron concentration, the semiconductor is :

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Important Questions on Semiconductor Electronics

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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 1
What is a valence band?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 2
What is a conduction band?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 3
What is meant by energy gap in solids?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 4
How does the energy gap in an intrinsic semiconductor vary, when doped with a pentavalent impurity?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 5
Distinguish between a metal and an insulator on the basis of energy bands.
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 6
Mark conductors, insulators and semiconductors among germanium, tungsten, air and silver.
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 7
What is the order of energy gap in a semiconductor?
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12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 18 - Semiconductor Electronics>QUESTIONS>Q 8

Why is Ge preferred over Si for making semiconductor devices?