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Magnetic Field

  1. May 7, 2006 #1
    b) In Figure B2, a variable resistor Rx is connected to a DC voltage source Vs.
    i) What is the direction of magnetic field act inside loop 2?
    ii) If the Rx is decreasing, what is the direction of the induced current acting on loop 2? Explain your answer.

    bi) The direction of the magnetic field in Loops 2 should be acting towards negative y-axis.

    bii) If the Rx is increasing,then the current flow in loop 1 will be decreasing, hence the magnetic field is getting stronger as well. The current in loop2 will flow in clockwise direction according to Lenz`s Law.

    Is my answer correct?
     
  2. jcsd
  3. May 9, 2006 #2
    Can anyone check my answer please?
     
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