Questions tagged [circuit-theory]

Question 1

Consider simple RC networks with 3 external terminals (GND, IN, and OUT) and, at most, 4 total components. To be clear, each component is either a resistor or a capacitor. For a 1V voltage step on IN, ...

Question 2

I did this problem for 7th times now. I did find this question in the book (Alexander Sadiku Fundamental of Electronics), but it's a Pspice problem to find V1 and V2 in each node. This one is source ...

Question 3

I can't understand or simplify the Zx in the picture is equal to that of

Question 4

Brief Question I'm trying to figure out a proof for the Complex Power Conservation Theorem, which does not use Nodal Analysis. Theory I know In my university this theorem has ben taught with the name &...

Question 5

In the circuit below because of the DC voltage source there will be no flux change on steady state of the circuit so how the LED still stays turned on if magnetic flux is not changing and no ...

Question 6

Can We Solve for Node Voltages and Branch Currents in Any Linear Circuit Using Only KVL and Constitutive Relations? In circuits with a single loop, it's trivial to solve using only Kirchhoff's Voltage ...

Question 7

I have a question that is a bit abstract. Assuming I have two proper linear circuits, A and B, which have: The same ideal components (for example, voltage source, inductor, capacitor, resistor) The ...

Question 8

Here is LM741 op amp circuit in Figure 1. The amplifier has two power supplies \$V_{cc}\$ and -\$V_{ee}\$. The up arrows are connected to the positive power supply \$V_{cc}\$ which is +15 V. Current ...

Question 9

The circuit in the image below is what I get when I open the switch of a larger circuit which I have already analysed. Therefore, I know the initial condition. simulate this circuit – Schematic ...

Question 10

The voltage rating of a capacitor is the maximum operating voltage, while the voltage rating of a light bulb is its normal operating voltage. Are there two different definitions of voltage ratings, or ...

Question 11

Let's have a circuit only composed of resistors connected in a given topology. This topology (network) has a well defined boundary (input/output connectors) but otherwise we don't know how it is ...

Question 12

When playing around with electrical concepts in my head, I realized that the IV characteristic of any combination of elements, in series or in parallel, can be computed by simply adding the IV curves ...

Question 13

I have been reading about the voltage gain of JFET, but I am unable to understand how to write the equation for the input side. Can somebody explain the method to write the equation for the input ...

Question 14

Update: (I updated the description/Question for clarity) I am currently stuck trying to solve a seemingly simple resistive network. The voltages U1 and U2, aswell as Rr are known. The unknown ...

Question 15

I am new to theory of circuits and I just learned about mesh analysis. When I was doing some reviewing, I stumbled across this question and wonder if you can use it here: I plugged the equation into ...

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Questions tagged [circuit-theory]

RC filter for a fast delayed ramp

Source Transformation AC

Equivalent impedance seen into drain

Complex Power Conservation or "Boucherot's Theorem" - a proof without Nodal Analysis

How basic wireless electricity transmission circuit works?

Can we solve all linear circuits using only KVL and constitutive relations?

Does KVL guarantee identical voltages/currents in similar circuits?

Power dissipation in an IC

Transient circuit analysis with additional source

Are voltage ratings defined differently for capacitors and light bulbs?

How can I infer a circuit topology only from measuring/controlling its input and output?

IV curve arithmetic - reference request

How to write the equation for the input side of a JFET?

Resistive network with two voltage sources

Why doesn't mesh analysis work here?

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