The majority charge carriers in $P$-type semiconductor are
A
Electrons
B
Protons
C
Holes
D
Neutrons
[MP PMT 1999; CBSE PMT 1999;MP PET 1991; MP PET/PMT 1998; MH CET 2003]
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C
Holes
In $P$-type semiconductors, holes are the majority charge carriers
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For a triode $r_p=10 \ kilo \ ohm$ and $g_m=3 \ milli \ mho$. If the load resistance is double of plate resistance, then the value of voltage gain will be
Carbon, silicon and Germanium atoms have four valence electrons each. Their valence and conduction band are separated by energy band gaps represented by $(E) .(E)$ and $(E)$ respectively. Which one of the following relationship is true in their case