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At room temperature, electrical conductivity of semiconductor is

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Important Questions on Semiconductors

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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 7
Electrical conductivity of a semiconductor
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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 8
In a semiconductor,
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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 9
In Gallium arsenide material, Ohm's law does not hold good, because
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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 10

Assertion: The resistivity of a semiconductor increases with temperature.

Reason: In a conducting solid, the rate of collisions between free electrons and ions increases with increase of temperature. 

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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 11
Two wires of aluminium and germanium are cooled to a temperature of 770 K. Then,
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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 21
The energy band gap is maximum in,
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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 30
The energy gap in case of which of the following is less than 3 eV?
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Physics Crash Course MHT-CET>Chapter 24 - Semiconductors>Exercise 1>Q 32
The band gaps of an insulator, semiconductor and conductor are respectively Eg1, Eg2 and Eg3. The relationship between them is given as