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Question

 A. HoleE. Negative temperature coefficient of resistance
 B. CopperF. Energy vacancy
 C. Doping G. Positive temperature coefficient of resistance
 D. GermaniumH. Addition of impurity to increase the conductivity
I. Charges are holes and electrons
Match the above lists:


A
A-H,I B-E C-F D-G
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B
A-E B-F,I C-G D-H
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C
A-F B-G C-H D-E,I
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D
A-G,I B-H C-E D-F
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Solution

The correct option is A A-F B-G C-H D-E,I
[A] Hole : Can be termed as energy vacancy as it is occupied by electron.
[B] Copper : It is a metal thus have a positive temperature coefficient of resistance.
[C] Doping : Is the addition of impurity to increase the conductivity.
[D] Germanium :  It is a semiconductor thus have a positive temperature coefficient of resistance and charge carriers are holes and electrons.

Physics

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