In the depletion region of an unbiased P-N junction diode there are

  • Option 1)

    Only electrons
     

  • Option 2)

     Only holes

  • Option 3)

    Both electrons and holes

     

  • Option 4)

    Only fixed ions

 

Answers (1)
D Divya Saini

As we discussed in concept

P-N junction -

When p type semiconductor is mixed with N - type semiconductor, P-N junction formed

 

- wherein

There is very thin region (of the order of micro meter) called depution region.

 

 In the depletion region, all the holes and electrons combined together and anhiliate each other and hence only ions will be present in depletion region.


Option 1)

Only electrons
 

This option is incorrect.

Option 2)

 Only holes

This option is incorrect.

Option 3)

Both electrons and holes

 

This option is incorrect.

Option 4)

Only fixed ions

This option is correct.

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