- #1
Draff
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I have learned the basic electronics and of course Volt ,amp, and ohm relation with the water pipe thing and I am just curious about some things that my prof(s) failed to answer
It says that what powers the circuit is actually current, does it mean that voltage and resistance variation is ok as long as the achieved current is the same? for example, if I have a simple bulb circuit, will lighting it with 5v the same as a 3v supply as long as I achieve a 15A output? (assuming the bulb can withstand 5v)
ground is shown in our circuit as connected to the negative of a DC circuit, when asked about it, my prof said that it varies if the circuit needs positive or negative supply, I have researched about it and they say that the ground is mostly a safety net of some sort, so that you won't shock yourself when things get out of hand. but in the circuit shown to us, the project (a traffic light simulation using LED) the ground seems unimportant as it is not connected to anything of the sorts. Is it safe to say that simple circuits need not have ground indications? except maybe showing if the circuit is positive or negative supply dependent?
in capacitor lecture, we were shown how the capacitor stores energy and how it releases it, my question is why is there a polarized capacitor and non polarized? under which situations should a electrolytic be used instead of ceramic? The site I read about talked about "what they're made of" but I don't see the point (over explanation of this somehow made me lose interest). and which is better?
in diode lecture, we learned about how diodes act as a "one way road" for the flow of the circuit, does the electrolytic capacitor not do the same?
Those are my questions
This part is just a note for everyone, as you may have noticed, I am slow in picking up lectures and I can't concentrate that well if things get too wordy so please keep it simple.
I have no computer at home so i rented in order to look up some of the questions only to realize that I spent half my time trying to understand 1 topic (the ground thing) by research, this is why I kinda bombarded this post with all my questions. I am sorry for this, please bare with me.
Thank you and have a nice day
It says that what powers the circuit is actually current, does it mean that voltage and resistance variation is ok as long as the achieved current is the same? for example, if I have a simple bulb circuit, will lighting it with 5v the same as a 3v supply as long as I achieve a 15A output? (assuming the bulb can withstand 5v)
ground is shown in our circuit as connected to the negative of a DC circuit, when asked about it, my prof said that it varies if the circuit needs positive or negative supply, I have researched about it and they say that the ground is mostly a safety net of some sort, so that you won't shock yourself when things get out of hand. but in the circuit shown to us, the project (a traffic light simulation using LED) the ground seems unimportant as it is not connected to anything of the sorts. Is it safe to say that simple circuits need not have ground indications? except maybe showing if the circuit is positive or negative supply dependent?
in capacitor lecture, we were shown how the capacitor stores energy and how it releases it, my question is why is there a polarized capacitor and non polarized? under which situations should a electrolytic be used instead of ceramic? The site I read about talked about "what they're made of" but I don't see the point (over explanation of this somehow made me lose interest). and which is better?
in diode lecture, we learned about how diodes act as a "one way road" for the flow of the circuit, does the electrolytic capacitor not do the same?
Those are my questions
This part is just a note for everyone, as you may have noticed, I am slow in picking up lectures and I can't concentrate that well if things get too wordy so please keep it simple.
I have no computer at home so i rented in order to look up some of the questions only to realize that I spent half my time trying to understand 1 topic (the ground thing) by research, this is why I kinda bombarded this post with all my questions. I am sorry for this, please bare with me.
Thank you and have a nice day