Circuits Definition and 1000 Threads

Formula One, abbreviated to F1, is currently the highest class of open-wheeled auto racing defined by the Fédération Internationale de l'Automobile (FIA), motorsport's world governing body. The "formula" in the name refers to a set of rules to which all participants and vehicles must conform. The F1 World Championship season consists of a series of races, known as Grands Prix, usually held on purpose-built circuits, and in a few cases on closed city streets. The results of each race are combined to determine two annual championships, one for drivers (World Drivers' Championship), and one for constructors (World Constructors' Championship).This list is for the circuits that hosted World Championship races from 1950 until now. The terms "Formula One race" and "World Championship race" were not always synonymous throughout history – see Formula One#Distinction between Formula One and World Championship races for a detailed explanation.

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  1. electrogeek

    Interpreting electrochemical impedance spectroscopy (EIS) circuits

    Hi all, I'm fairly new to electrochemical impedance spectroscopy (EIS). On some slides I was given, I have been provided with two circuits which would produce the same nyquist plot. I was wondering what real-world scenario these circuits would relate to. I know that the left-most resistor in...
  2. Sat-P

    Equivalent resistance of this 6-sided circuit

  3. kirito

    How to determine if electrical components are connected in parallel or in series?

    I tried to name the point where the potential is the same and follow them, if two components are connected from one end only they are in series else in parallel, but when the shape of the circuit is a bit complicated like this , I struggle to reshape it into something that can clearly state...
  4. ananunes06

    I Does current decrease inside a wire or does it increase it's velocity?

    I've been really confused on how electricity and circuits work 1. If eletrons "slow down" inside a resistor (or wire, I'm considering it's resistance to be ≠ 0) because of collisions with the lattice, then wouldn't the electrons pile up? The charges accumulating doesn't seem to be good. 2. Some...
  5. B

    Physics about electric circuits: Changing the resistors changes the currents

    Please help me with this homework! I haven't had any solutions since it is all unclear.
  6. S

    I Conductors and circuits for nuclear force

    Is it possible to create something like a circuit powered by the strong nuclear force rather than the electromotive force of a battery? If so, what would be examples of some conductors and resistors that could go in such a circuit?
  7. Z

    Find the equivalent resistance of this circuit

    Consider the following circuit where all resistors have resistance ##1 \Omega##. We would like to find the equivalent resistance. My solution differs from the answer at the end of the book I am reading, so I would like to know what I did wrong, or if the book is wrong. Here is what I did...
  8. bmhiggs

    I Why does resistance reduce current in whole circuit?

    Ohm's law states that current is inversely proportional to resistance, but on the quantum level, why does that actually slow the current down for the whole circuit? In all of the basic explanations, it talks about how the more densely packed matter in the resistor creates more collisions and...
  9. shivajikobardan

    Good books to learn electronic devices and circuits AND digital electronics

    TL;DR Summary: Good books to learn electronic devices and circuits AND digital electronics for competitive exams Here are my choices(in no particular order). You can recommend something out of this as well. 1) Electronic Devices and Circuits by JB Gupta. 2) Electrronic Principles by albert...
  10. Z

    How do we obtain an ampere-hour rating given voltage and watt-hour?

    The solution is thus 0.69 ampere-hours, or 690 mA-hours. Now, as far as I can tell, an ampere-hour is unit of charge. That is we can convert it to coulombs (C). For example, if we have a current of 1A for 1h, then we have 1 C/s x 3600 s = 3600 C = 1 ampere-hour. This is my guess since the book...
  11. cianfa72

    I Circuits or edge-disjoint unions of circuits in a connected graph

    Hi, I've a question related to the graph theory. Take a connected graph with ##n## nodes and ##b## edges. We know there are ##m = b - n + 1## fundamental circuits. Which is the total number of nonempty circuits or edge-disjoint unions of circuits ? If we do not take in account the circuit...
  12. D

    Design an opamp circuit with this transfer function on 3 voltage inputs

    TL;DR Summary: Build a circuit of given operation on voltages I'll appreciate any help. I need to create circuit of this operation on three voltages: We'll use circuit of voltages summer: The third term is the integral of U_3, so we'll use integrator: Than, calculate capacitance: And on...
  13. Lay1

    Series-Parallel Circuits (R/2R Ladder Networks)

    This is the figure given by the question. Here is the redraw of above circuit. What I request to ask are: 1. Is my redraw is correct or not? 2. The Vout asked in the question is referred to the voltage after passing throgh R8? Thank you for your answers.
  14. Evari5te

    Solving Current & Power in 4 & 3 Wire Circuits

    My thoughts were I could use mesh current analysis to derive equations for current hence power in each case in terms of ωC and R, set the equations for real power equal to each other and solve for R. While ωC are known I opted to leave them as letters thinking this might make life easier when...
  15. A

    I Why NAND & NOR Gates are Necessary for LATCH Circuits

    Why we cannot make a LATCH circuit with logic gates other than NAND and NOR gates.?
  16. G

    Thévenin and Norton circuits Exercise

    Figure: My attempt at a solution: a) ##\boxed{V_{TH}}## Current source equations ##\rightarrow \boxed{2=I_2-I_1}## Control variable equations ##\rightarrow V_1=4I_2\rightarrow \boxed{0=4I_2-V_1}## Super Mesh ##\rightarrow -0,5V_1+2I_1+I_2(4+8)-8I_3=0\rghtarrow...
  17. C

    Exploring Audio Signal Manipulation with Circuits

    I'm just playing around with circuitry, working with manipulation of Audio Signals in active circuits(My guitar, going to build an internal preamplifier). I've been trying to find an answer on this all day with no luck. As eager as I am to see what the effect would be it would be nice to know...
  18. A

    RC Circuits: Measuring Capacitance

    I thought that if the slope of the T versus R graph is 4.00μF, then the capacitance would be 4.00μF but it says that's wrong. I know I'm doing something wrong but I'm not sure how to approach this problem. Can someone help?
  19. J

    Recommendation for a platform for drawing computational circuits

    Homework Statement:: I need to draw circuits involving quantum gates and quantum states I would like a platform that allowed me to draw quantum computation circuits. That is, that it provides me with the schemes and allows me to write in latex. Many thanks in advance.
  20. rokunanto

    Is Bulb A Brighter in a Parallel Circuit Due to Potential Difference?

    As demonstrated by the figure, bulb A and bulb are in a parallel circuit whose batteries are ideal and identical. I am asking for assistance to see where I am going wrong in my approach and how to better understand and figure out the question! 1. If the switch was closed, the brightness of bulb...
  21. altruan23

    Engineering Black box which contains 5x 1ohm resistors

    You are given a black box with three terminals, as shown below. The box is known to contain five 1-ohm resistors. Using an ohm-meter, you measure the resistance between the terminals to be the following: A - B: 1.5 ohms B - C: 3 ohms A - C: 2.5 ohms Determine the configuration of the five...
  22. maajdl

    I CQED understanding superconducting qbits circuits

    I have read a little about cqed, "circuit quantum electrodynamics". I would be interested in references to dig a qbit deeper in this topic! I have seen lumped circuit diagrams for superconducting qbits. The correspondance between classical and quantum models for these circuits is really...
  23. Xiao Xiao

    Engineering Nodal Analysis of a circuit with 3 sources and 3 resistors

  24. T

    Explicit Calculation of Q Factor of Loaded Tuned Circuits

    I would like to discuss in detail an interesting aspect dealing with general considerations and methods to calculate the Q factor of oscillating systems on the example of this regenerative receiver. Althought it is closely related to the discussion here discussion here (especially Baluncore's...
  25. Dario56

    I Energy Flow From Battery to the Light Bulb

    When we connect tungsten filament light bulb to the battery, filament becomes hot due to electrons losing kinetic energy in the electric field inside of conductor. Heat is eventually converted to electromagnetic radiation making light bulb shine. Light energy comes from flow of electrons and...
  26. JD_PM

    Explaining Voltage Split in Series Circuits with Ohm's Law

    Let us set up a very simple circuit, with two resistors in series as shown in the sketch. We know that for this particular circuit ##V_{14} = V_{12} + V_{23}##. But what I have always wondered is: How does the circuit "know" that once I introduce a battery of ##8 V## that each of the bulbs...
  27. M

    Engineering Applying Thevenin's theorem to AC circuits

    So I've seen other threads on here with the same problem from a few years ago, and I'm just not getting the same answers. However, I followed along with a similar problem in the textbook and used all the same methods, so can't understand where I've gone wrong, or if I even am wrong. Also not...
  28. E

    I am having some difficulties solving a combination circuits problem

    I'm having difficulties finding the current for a 9-ohm resistor only, not the 20-ohm My attempt was to find the voltage of a 20ohm resistor which is V = (0.75A)(20-ohm) = 15V. I got the 0.75A by adding the currents of the two resistors (8-ohm and 16-ohm) together that were in parallel and it...
  29. N

    Two basic diode and capacitor circuits

    Hi there! I have resolve this basic circuit, but, i have a little questions about. The first circuit its: The diode in all voltaje cases act like a switch, so, the courrent of all components and voltage of the resistance its zero. I graph the curve according my interpretation. My question its...
  30. I

    Analogue Circuits Question -- AC and DC currents through a coil

    Summary:: . Hi ,so am currently doing homework , and was wondering if anyone could tell me if i have done my calculations correctly ,because am not 100% sure that i have answer to those 2 questions correctly .If i have went somewhere wrong if you could tell me where and how i could fix it...
  31. T

    Engineering Understanding Resonance in AC Circuits

    Here's my attempt at a solution.
  32. Secre

    Engineering How to deal with dc source on ac circuits?

    We are tasked to solve for the steady state voltage v using superposition theorem. I start with solving with voltage source using mesh analysis and got the current flowing through the 3 ohms resistor and get the first value of the voltage which is 3.2cos(6t+126.87). Now my problem is I am...
  33. Xiao Xiao

    Engineering Finding Vc for two circuits, Electric Circuit Analysis question

  34. M

    How to understand power stage circuits with transistors (undergrad level)?

    Hi, When I look at some circuits, I often get overwhelmed when there are transistors and diodes and I have no idea how to make much sense of it at a detailed level. For example, in this power stage B amplifier, what is the point of the resistors ## R_1 ## and ## R_2 ## in the circuit...
  35. H

    Finding Magnetic Field of a Toroid with Two Circuits

    I have a toroid with square cross section and 2 different circuit: ##C_1## where ##N=N_1## and ##I=I_1## ##C_2## where ##N=N_2## and ##I=I_2## I have a question that say I have to find the magnetic field ##B## produce by ##C_1## everywhere inside the coil. I assume here I have to find the...
  36. I

    Help me revise (basic electronic circuits questions)

    https://www.physicsforums.com/attachments/281345
  37. nobodyjusttrying

    Create a Phasor Diagram for Steady State Circuits

    So all we have to do is find the current and power distribution in the steady state circuit. Create a phasor diagram. I don't exactly know how to tell it in english, but i think there is a thing I called c. & p. paths.
  38. Butterfly41398

    Series RLC Circuits: Resonant Frequency of 60° at 40 Hz

    Summary:: About resonant frequencies A series RLC circuit with R = 250 ohms and L = 0.6 H results in a leading phase angle of 60° at a frequency of 40 Hz. At what frequency will the circuit resonate? Answer is 81.2 Hz but i got a different answer. May someone please correct me.
  39. wcjy

    Circuits - AC circuits / phasor

    Hi, my school has no answer key provided. and would like to check if this is correct. Thanks!
  40. wcjy

    Circuits - Transfer function of this LRC circuit

    Got B = 9. My school doesn't provide answers, hence could someone double check if my answers is right? Thanks!
  41. F

    How to distinguish between linear and non-linear circuits?

    Many circuit analysis techniques only apply to linear circuits. I don’t quite understand how to distinguish between linear and non-linear circuits. I understand the mathematical concept of linearity. I understand why components like resistors, capacitors and inductors are linear. I don’t quite...
  42. S

    Engineering Can a voltage test source help solve for Rth in a complex Thevenin's circuit?

    So I've been absolutely stumped on this one. I've tried about a million different things but none of them have seemed right. A combination of the odd layout of the circuit, and a combined voltage/current source are making things really complicated for me. I'm somewhat sure the RTh is 15kΩ due to...
  43. S

    Engineering Norton's Theorem -- Help checking my work please

    So I've just learned Norton's Theorem and I have this problem on my homework assignment that is wrong. I've checked the answer with a circuit simulator(PSPICE) and the simulation said that V0 should be a drop of 2V. However, my simplified circuit shows a voltage drop of 4V. I have been staring...
  44. F

    Simulating op-amp circuits using Multisim/Matlab

    I tried to simulate the circuit shown in fig 1 using Multisim and here's my work: The result: I do not know where is my mistake, could someone help me figuring out the problem? Any help would be greatly appreciated!
  45. H

    Understanding RLC Circuits: Series vs Parallel

    I'm a bit confused with RLC circuit. If in series, IL = IL, max * cos(wt) If in parallel, IL = - IL, max * cos(wt) Are these correct?
  46. P

    Understanding Voltage Distribution in AC Circuits

    The problem is shown below: (I am only asking about part b) ^Above is the problem. Below is the solution to part b. They have claimed that we can set potential at C = D = u(t), and A=B=0. Why is this claim true? What I realize: By applying Kirchoff's across ACDB, Voltage across C1 = Voltage...
  47. F

    Theory question about neutrals in circuits

    Ok, first I want to say that I am an electrical engineer. I want to be very clear that I am trying to understand a specific situation that I came across. I am searching for an answer of why and how this situation could happen. I don't want a solution for the problem, just a theoretical, physical...
  48. H

    The potential difference/EMF in RL circuits

    I would like to share my understanding of both of these questions. For Question (1), the inductance L is releasing its stored energy to be dissipated by the resistance R. As time passes, the voltage across L is decreasing and thus the potential difference across the resistor will be close to 0...
  49. boysenbeary

    Engineering Finding Time Constant T Without L for an LR Circuit

    Edit: Picture of the Circuit (Simple RL circuit) The value of L is not given. Attempt to Solve for T by Rearranging Equation 1: I rearranged the equation to solve for T, using Ohm's Law so solve for I = V/R at each time. https://www.desmos.com/calculator/qlb2n6w4bg This graph is...
  50. Touuka

    Understanding Energy Loss of 2 Joules in Circuits with Changing Capacitance

    I am given the answer is 2J and I know how to get there with U = q^2/2C. But what I don't understand is that why is the energy not conserved here? How can energy loses just because the capacitance is doubled?
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