Anonymous321
New Member
Hmm ok. And the resistor just simply controls the current.The basic concept is that the light affects the cell,
and the cell controls the transistor,
and the transistor controls the siren.
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Hmm ok. And the resistor just simply controls the current.The basic concept is that the light affects the cell,
and the cell controls the transistor,
and the transistor controls the siren.
Lol. Ok I get the point--I'll stop asking questions. But you have explained it all to me now. So thank you.john1 said:heres a picture of my cat:
Yeah ok, it makes, sense. Ty.Hope that makes sense ... the cell has direct control, the resistor sets the range.
Ah ok, ty. Yeah, I definitely can do with a laugh. I'm thinking too hard.Woah there, not at all.
I just thought you could do with a laugh.
Yeah, me too. And also, my project is about alarms and I have 4 methods to describe (the laser method being one of them). So I'm probably also going to be asked about the other methods (i.e. ultrasonic, microwave, PIR) too. I think that since I chose the laser alarm method to be my model, I will probably be asked how it all works and like the general electron flow. If I mess up, he'll just continue asking.I hope the questions you face are not so in-depth.
Well, it's only 1:20AM here. I think it's 6:20AM where you are so I don't know how you're managing to stay up and answer my questions. If you want/have to go, please do so. If not, I think that if you could give me brief one line explanations to those questions in the post with 5 of your quotes, I'll be good. It's not only the laser alarm that I'm going to be asked about and I have a math test to start studying for as well. Once again, I really appreciate your help. Thank you.but i feel its a bit late where you are,
do you want to continue, or to leave it at that ?
Whichever one I suggest you use in class, the teacher will prefer the other one.
So the transistor is not used as a switching device anytime? I thought that this (a switch) was what we were using the transistor as.Briefly:
The transistor in this case is used as a current amplifying device,
the output current being controlled by the smaller base current.
The emitter is common to both current paths.