Register to reply

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

by Phyman1109
Tags: applying, current, kirchoff, single, transistor
Share this thread:
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
Phys.Org News Partner Engineering news on
Tiny UAVs and hummingbirds are put to test
Britain to trial driverless cars from 2015
NIST corrosion lab tests suggest need for underground gas tank retrofits
Oct23-13, 09:36 AM
P: 554
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.
Oct24-13, 10:42 PM
P: 14

Register to reply

Related Discussions
Single Transistor Overall Current Gain Engineering, Comp Sci, & Technology Homework 2
Working out the current though bulbs in a circuit by applying Kirchoff's laws Introductory Physics Homework 4
Kirchoff voltage law to transistor circuits? Introductory Physics Homework 4
Applying Kirchoff's law to circuit which only has cells Introductory Physics Homework 6
Applying Kirchoff's rule Introductory Physics Homework 1