A semiconductor is known to have an electron concentration of cm-3 and a hole concentration of cm-3. The semiconductor is:
1. n-type
2. p-type
3. intrinsic
4. insulator
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Pure Si at 500 K has equal number of electron and hole concentration of Doping by indium increases to The doped semiconductor is of:
1. | n-type with electron concentration \(n_{e}=5\times10^{22}~m^{-3}\) |
2. | \(n_{e}=2.5\times10^{23}~m^{-3}\) | p-type with electron concentration
3. | \(n_{e}=2.5\times10^{10}~m^{-3}\) | n-type with electron concentration
4. | \(n_{e}=5\times10^{9}~m^{-3}\) | p-type with electron concentration
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