EASY
JEE Advanced
IMPORTANT
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Temperature coefficient of resistance of a semiconductor is,

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Important Questions on Solids and Semiconductor Devices

EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 26
An $n$-type and a $p$-type silicon can be obtained by doping pure silicon with,
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 27
In an insulator, the forbidden energy gap between the valence band and conduction band is of the order of,
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 28
An $n$-type semiconductor is,
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 29
The valence band and conduction band of a solid overlap at low temperature. The solid may be,
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 30
A Si specimen is made into $p$-type semiconductor by doping an average of one indium atom per 6×107 silicon atoms. If the number density of atoms in Si be 6×1028 m-3, what is the indium atom per centimetre cube?
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 31
The band gap for silicon is 1.12 eV and that for germanium is 0.72 eV. Therefore, it can be concluded that,
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 32
Under which of the following conditions does an avalanche breakdown in a semiconductor diode occur?
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 10 - Solids and Semiconductor Devices>Objective Problems [Level 1]>Q 33
Let np and ne be the numbers of holes and conduction electrons in an intrinsic semiconductor. This means,