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

by Phyman1109
Tags: applying, current, kirchoff, single, transistor
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Phyman1109
#1
Oct22-13, 11:47 PM
P: 14
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
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Windadct
#2
Oct23-13, 09:36 AM
P: 561
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.
Phyman1109
#3
Oct24-13, 10:42 PM
P: 14
Oh...thanks.


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