Ok so I’m new to electronics so plz have mercy. I’m going through the basics and am able to find the voltage, current, and resistance at each resistor point in the circuit using ohms law. I started with series circuits and moved unto parallel and am getting decent at combinational circuits composed of both series and parallel circuits.
However the problem with the examples I’ve been using is they only use resistors when solving for the voltage, current, and resistance. I want to be able to calculate the voltage, current, and resistance for every point in the circuit not just at the points with resistors. What about circuits with transistors and LED’s and other electrical components? The tutorials I’ve been following don’t seem to address this. It just stops after combinational circuits and only uses resistors when presenting series and parallel circuits.
For example, how would one solve for the voltage, current, and resistance at every component point in this circuit?
If you could solve this example and explain it that would really help me learn.
This looks a lot like homework. There was EEVblog video on youtube I saw a year or so ago where he covered a topic like this. Calculating resistance in series, parallel, or series/parallel mixed.
Also, on the third example you'll need to know the forward voltage of the LED.
Have you looked at and practiced Ohm's law equations?
This is all covered in sufficient detail in any good electronics textbook or online reference. Please consult those, and come back with specific questions.
The way that the tutorials showed how to solve combinational circuits was to break each section down into parts and combine them to make a bunch of blocks of one giant series circuit. How would you do this for this circuit?
Also I have no way to calculate the resistance for the led and the mosfet. Do you treat them as a resistor? I'm confused. Hope this adds a little clarity
You are likely confused because you're not following an effective electronics learning path. Please get yourself a good text book and read. It's how I learned.
Of course not, as there is a lot of material and solid math skills are required to handle the calculations correctly.
Analog electronics circuit theory is usually covered in a one or two semester university course, and it is hard work. One of the better textbooks is Horowitz and Hill, The Art of Electronics. Some of that material will be included in a general physics course, as well.
One approach is to enter the circuit into the LTSpice circuit simulator, free to download. Hard to handle a switch, though, as you never know when the human will toggle it.
Transistors and diodes are non linear devices that don’t have voltage to current relationships that can be calculated using ohms law .
A diode for example will have a forward voltage drop of around .6 volts which is pretty well independent of the current it passes .
You need to study diodes , then move onto transistors .
Capacitor and inductors also have “ strange “ characteristics . Batteries too dont obey ohms law either .
Ohms law , how a transistor works , Kirchhoffs law etc ( google )
