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Field due to a Current?

A current of 2.45 A is located at the origin, flowing along the z axis. (A positive current flows in the + k direction.) Find the magnetic field at the point (4.05,5.68) cm.

Enter the x and y components of the field:

1 Answer

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  • 4 years ago

    Magnetic Field Strength (B) = (Mo*I)/(2*pi*R)

    I is Current

    Mo is a known constant and is equal to 1.257*10^-6

    R is the magnitude distance from the center of the wire which can be found by Pythagorean theorem:

    R = sqrt(4.05^2 + 5.68^2) = 6.98 cm = 0.0698 m

    So after plugging these values into the equation, B = 7.022*10^-6 T

    This is magnitude, use the X and Y components as R for the components of B:

    Bx = 1.21*10^-5 T

    By = 8.83*10^-6 T

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