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Experiment about emf.

  1. Jan 24, 2014 #1
    The attached drawing represents 4 wires. The top and down are still. The right and left move with the same velocity v as shown by the arrows.

    There is a magnetic field perpendicular to the page.

    Will there be a current flowing through the circuit formed by the 4 wires?
  2. jcsd
  3. Jan 24, 2014 #2
  4. Jan 24, 2014 #3


    Staff: Mentor

    Yes. Each will get an EMF in the opposite direction, leading to a current loop.
  5. Jan 27, 2014 #4

    Philip Wood

    User Avatar
    Gold Member

    Another way of looking at it is that the area of the circuit is shrinking, and so, therefore, is the magnetic flux, B.A, linking the circuit.
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