Applying kirchoff's current law on transistor considering it a single

  • Thread starter Phyman1109
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  • #1
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Main Question or Discussion Point

How can I apply kcl on transistor considering it as a single node since transistor can act as source or sink for electrons due to combination with holes
 

Answers and Replies

  • #2
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Well current in = current out ... always.......

A Transistor is NOT a source or sink for electrons - at the Junction holes ( + charge ) combine with electrons (- Charge) and the ratio is 1:1 - always.... so net current is charge moving in a single direction.


Consider Holes + charge moving ---> (left to right) to the junction compared with Electrons moving <---- to the junction ( right to left ) ... the net current ( think charge x direction) is all moving the same direction.
 
  • #3
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Oh...thanks.
 

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