Electric fields Definition and 507 Threads

  1. M

    Electric fields and forces help

    There are 4 equal charges of 2 micro Coulumbs in a shape of a square. 2 positives line up on 1 side, which is the left side and 2 negatives line up on the other side, which is the left. Again, the charges are of equal magnitude. The question asks for the magnitude of the electric field at the...
  2. T

    Creating a Monorail: Electric Fields and Magnetism

    Hi, lately, me and my friend wanted to build a monorail. suspended by magnets, and powered by electricity. we can't manage to create propulson. The Question? What shape and how are electric fields formed? P.S. Please don't call me a simpleton, I'm only fifteen.
  3. O

    Electric Fields charge problem

    I'm having trouble with this question. Where am I going wrong? Three charges are at the corners of an equilateral trangle. The bottom left corner has a charge of 2.00e-6 C, bottom right -4.00e-6 C, and top with 7.00e-6 C and separated by 0.500m. Calculate the electric field at the...
  4. Z

    Electric Forces and Electric Fields

    Hello all, Physics is generally pretty hard for me, so understanding Electric forces has been a monster. I've done what I "know" how to do on the following problem, but I need some input from the professionals =) Thank you in advance. Two point charges, Q1 and Q2 are located a distance .20...
  5. A

    Electric Fields, Insulators, Conductors

    I am going to attach the question along with this post so that you guys can see the questions and the diagram and be able to help me in answering my question better. I found the ccharge on the inner sphere and it is -3.928e-9 and the charge on the outer sphere is 8.15698e-9. Now I have to...
  6. Z

    What is the Electric Field Magnitude at a Charged Ball's Position?

    I'm having a problem with one of my physics problems. A plastic ball of radius 5 cm is hanging from a string 2m away from a charged glass rod. The ball has been charged to -5.13 microCoulombs. If the electric force on the ball is 0.6672 milliNewtons in the horizontal direction, what is the...
  7. D

    Electric Fields in circular wire

    I'm stumped by the following problem: A circular ring of fine wire carries a uniformly distributed positive charge, q. Find the magnitude and direction of the electric field at the center of the ring caused by just the charge on a portion of the ring subtending an angle [the] at the center...
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