How Does Current Flow in This PNP Transistor?

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In summary, this is a PNP transistor where the current flows through two resistors to the ground. The gate-emitter junction is reverse biased, causing the transistor to be in cut-off region. The current does not flow directly from top to bottom due to the presence of resistors in the circuit.
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kliker
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[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
 
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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.
 
  • #3
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?
 

FAQ: How Does Current Flow in This PNP Transistor?

What is a transistor?

A transistor is a semiconductor device that is used to amplify or switch electronic signals. It is a fundamental building block in most electronic devices.

How does a transistor work?

A transistor consists of three layers of a semiconductor material, typically silicon. By applying a small voltage to the middle layer, also known as the base, the flow of current between the other two layers, the emitter and the collector, can be controlled.

Why is it important to understand transistors?

Understanding transistors is important because they are the key component in most modern electronic devices such as computers, smartphones, and televisions. Knowing how they work allows us to design and improve these devices.

What are the different types of transistors?

There are two main types of transistors: bipolar junction transistors (BJTs) and field-effect transistors (FETs). BJTs are mainly used for amplification, while FETs are used for switching and amplification.

How do I troubleshoot issues with a transistor?

If you are having trouble with a transistor, first check the connections and make sure they are correct. You can also use a multimeter to check for continuity and voltage. If the transistor is not functioning properly, it may need to be replaced.

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