I am trying to teach myself how transistors work. I am using this site but also am using a book i have.
This site talks a lot about current flowing between base and emitter affecting the current flowing between the collector and the emitter. But the book i am reading talks about a voltage across the base and the emitter changing the resistance between the emitter and the collecter.
I don't see how these two ways of describing things fit together and am very confused.
In the book the circuit in the picture attached is shown. It says how an increase in voltage at the input increases the resistance of the transistor. As the transistor creates a potential divider with the resistor above it, an increase in its resistance will cause an increse in the output voltage.
From what i have read on this site however it seems to me that if the voltage was increased at the input more current would flow from base to emitter, so more would flow from collecter to emitter. Surely if there is more current there is less resistance.
I hope somebody can clear this up for me, and i hope my explenation was not too long winded. (I am not very good at expressing my ideas in words).
This site talks a lot about current flowing between base and emitter affecting the current flowing between the collector and the emitter. But the book i am reading talks about a voltage across the base and the emitter changing the resistance between the emitter and the collecter.
I don't see how these two ways of describing things fit together and am very confused.
In the book the circuit in the picture attached is shown. It says how an increase in voltage at the input increases the resistance of the transistor. As the transistor creates a potential divider with the resistor above it, an increase in its resistance will cause an increse in the output voltage.
From what i have read on this site however it seems to me that if the voltage was increased at the input more current would flow from base to emitter, so more would flow from collecter to emitter. Surely if there is more current there is less resistance.
I hope somebody can clear this up for me, and i hope my explenation was not too long winded. (I am not very good at expressing my ideas in words).
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