Loops Definition and 262 Threads

  1. R

    Current Loops in a Magnetic Field Problem Question.

    Hi, I'm just wondering if anyone knows how I should be setting up my FBD for this question, or any hints as to how to go about doing this question: "A long piece of wire with a mass of 0.100 kg and a total length of 4.00 m is used to make a square coil with a side of 0.100 m. The coil is...
  2. Math Is Hard

    C++ printing and positioning with loops

    I am working on a little piece of a program that prints two diagonal lines. I am using a variable "num" to specify how far down to draw each diagonal. What I would like to do is be able to start at a position on the screen and have the printing begin at that position, and also track the...
  3. B

    Circular motion: An aeroplane loops the loop

    Question: An aeroplane loops the loop in a verticle circle of radius 200m, with a speed of 40m/s at the top of thel oop. The pilot has a mass of 80kg. What is the tension in the strap holding him into his seat when he is at the top of the loop?. Answer: The centrifugal force...
  4. P

    What is the difference btw 2 loops?

    What is the difference btw 2 conducting loops? Hello. What is the difference between a conducting loop with charge q distributed over the loop that is rotating and a stationary loop with current flowing around the loop? Do they have the same effect when it comes to calculating magnetic...
  5. Z

    Can Oscillating Current Loops Produce Equal and Opposite Forces?

    Hiya, Materials: - Two current loops oscillating at ~ 9GHz Square Wave Orientation: - Stack the two loops one on top of the other at ~ 1cm seperation. What I See: - At that distance and frequency of oscillation it appears as if you could get a force with an equal reaction...
  6. john baez

    Marseille workshop on loops and spin foams

    I just got back from the Marseille conference on loop quantum gravity and spin foams: http://w3.lpm.univ-montp2.fr/~philippe/quantumgravitywebsite/ It was really great, so I devoted "week206" of my column This Week's Finds entirely to this conference...
  7. marcus

    The Duel: Strings versus Loops by Rudy Vaas

    "The Duel: Strings versus Loops" by Rudy Vaas http://arxiv.org./ftp/physics/papers/0403/0403112.pdf it's a 10-page popular article about the Strings meets Loops conference last October written for Bild der Wissenschaft (translated into English by Martin Bojowald and Amitaba Sen) Part...
  8. B

    Uniform Magnetic Field Causes Induced Current in Loops

    by faraday's law induced current in a conducting loop is caused by changes in magnetic flux through that loop.. now, if you move a conducting loop through uniform magnetic field (fixed magnitude and direction) there is an induced current even though there is (apparently) no change in magnetic...
  9. D

    RL Circuit with Two Loops: Solving for Current and Switch Equation

    I have a homework problem with an RL circuit. There are two loops in the circuit. One has the emf and two resistors and a switch and the other has two resistors and an inductor. The resistors, the inductor and the emf are all given values and I'm given that the switch is closed at time = 0...
  10. S

    Farday's law in two conducting loops

    consider two conducting loops with fixed geometries and at fixed positions. Let I1 and I2 be the currents flowing in the loops 1 and 2. how does Faraday's Law allow the currents I1 and I2 to affect each other? farday's law says that changing the flux between loops 1 will induce an emf in...
  11. marcus

    Strings Meets Loops at the Albert Einstein Institute

    John Baez just posted this announcement and tentative schedule for a conference this month at the Albert Einstein Institute (Max Planck Institute for Gravitation Physics) on the outskirts of Berlin. We have had several threads at PF studying work by AEI people---Hanno Sahlmann, Martin...
  12. Loren Booda

    Effect of time loops on evolution

    It occurred to me that the existence of localized time reversal would manifest an evolution that relies more on free will than genetic determination. The connectivity between two events completing a time loop takes place arbitrarily to Darwinism, either fulfilling spacetime continuity or...
Back
Top