How Does Current Flow in This PNP Transistor?

  • Thread starter Thread starter kliker
  • Start date Start date
  • Tags Tags
    Transistor
Click For Summary
SUMMARY

This discussion confirms that the component in question is indeed a PNP transistor. The current flows from the emitter to the collector through two resistors, which are connected to ground. The gate-emitter junction is reverse biased due to the voltage across resistor R2, placing the transistor in the cut-off region. This configuration explains why current does not flow as one might initially expect.

PREREQUISITES
  • Understanding of PNP transistor operation
  • Knowledge of circuit theory, specifically current flow and biasing
  • Familiarity with resistor functions in electronic circuits
  • Basic grasp of transistor regions: cut-off, active, and saturation
NEXT STEPS
  • Study PNP transistor characteristics and applications
  • Learn about biasing techniques for transistors
  • Explore circuit analysis methods for understanding current flow
  • Investigate the role of resistors in transistor circuits
USEFUL FOR

Electronics students, hobbyists, and engineers interested in understanding PNP transistor behavior and circuit design.

kliker
Messages
102
Reaction score
0
[PLAIN]http://img687.imageshack.us/img687/2164/transistor.jpg

is this a pnp transistor? if yes, why does the current go from top to bottom?

also, does this transistor work? I mean shouldn't there be 0 current going throuth the two resistors?

i can't understand it at all
 
Last edited by a moderator:
Physics news on Phys.org
Yes, this is a PNP transistor. The current is just flowing via two resistors to the ground. The gate-emitter junction is reverse biased by voltage across R2, so the transistor will be in cut-off region.
 
n.karthick said:
Yes, this is a PNP transistor. The current is just flowing via two resistors to the ground. The gate-emitter junction is reverse biased by voltage across R2, so the transistor will be in cut-off region.

but why does current go through the two resistors? shouldn't it just go down from the other way where there are no resistors?
 

Similar threads

  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 6 ·
Replies
6
Views
1K
Replies
68
Views
7K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 15 ·
Replies
15
Views
6K
  • · Replies 5 ·
Replies
5
Views
4K
Replies
80
Views
5K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 13 ·
Replies
13
Views
3K