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  2. Why conductivity of silicon increases on doping with phosphorus ?          
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Why conductivity of silicon increases on doping with phosphorus ?

 

 

 

 
 
 
 
 

Answers (1)
S Sumit

There is an increase in conductivity when silicon is doped with Phosphorous because Si doped with P becomes N-type semiconductor. In that, four valance electrons will be used for bonding with Si and fifth electron serves to conduct electricity.

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