Silicon doped with Arsenic is an example of:

p-type semiconductor

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n-type semiconductor

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p-n junction

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None of these

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Solution

The correct option is B
n-type semiconductor

Silicon has a valency of 4. When it is doped with arsenic that has 5 electrons in its valence shell, the extra electron is free to move around and it creates an n-type semiconductor.

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Similar questions

Which of the following statements are true about semiconductors ?

(a) Silicon doped with electron rich impurity is a p-type semiconductor

(b) Silicon doped with an electron rich impurity is an n-type semiconductor

(d) An electron vacancy increases the conductivity of n-type semiconductor

Silicon doped with electron-rich impurity forms .................

(a) P-type semiconductor (b) n-type semiconductor

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