Recent content by Lonley_Shepherd

  1. L

    Calculating EMF from Coils in Rotating Magnetic Field

    okay.. can u give me a numerical example for that.. if B= B(t) A(r) then it will move out of the integral sign and the only term remaining is the (integral) ds , so the more the area chosen the higher the magnitude value of that term.. please help me with that
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    Calculating EMF from Coils in Rotating Magnetic Field

    the three coordinate directions am using are: A(r) A(phi) and A(z) isnt A(r) . anything but A(r) zero?? as in A(x) . A(y) is zero PS: i am not really asking about that particular question its the concept of intergrating over a surface that encloses a path, as explained in the previous post...
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    Calculating EMF from Coils in Rotating Magnetic Field

    To find the emf generated by two ten turn coils, the planes of which are at 60 degrees in a radial magnetic field B=Bcos(theta)sin(omega*t) in the direction Ar, that rotates with omega rad/sec at the instant when the coil A1A2 makes an angle alpha with the plane of the maximum flux density...
  4. L

    Gradient, divegrance and curl? del operator

    ohh please do finish wut u promised! and well the links to that other site are just stating what div and curl are... i do get wut they mean mathematically... del dot and del cross... but wen related to electric and magnetic fields.. it just isn't clear anymore.. how can a rate of change with...
  5. L

    Ampere's Law, must the current extend to infinity?

    well actually about that solenoid example.. the two sides of the rectangular loop parallel to the axis of the solenoid.. now the side outside the solenoid.. why is B zero on this side.. please dunt tell me as a result of the right hand rule or and other assumptions... if we r using amperes law...
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    Gradient, divegrance and curl? del operator

    Gradient, divegrance and curl? del operator! in static magnetic and electric fields, the del operator was introduced and then used to describe three different quantities.. i still can't quite figure out the physical meaning and difference between the curl,divergance and the gradient in terms of...
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