Again suppose we, in our minds, divide the pipes into a series of horizontal sec

Question

Again suppose we, in our minds, divide the pipes into a series of horizontal sections. These sections will take the form of loops of pipe in a horizontal plane. As the magnets fall through the pipe, what change in the magnitude of the magnetic field vector will occur through the area bounded by any loop as the magnets fall away from the loop:

a) The magnitude field vector increases in strength
b) the magnitude field vector decreases in strength
c) the magnetic field vector does not change in strength
d) there is no magnetic field vector there at all

Explanation / Answer

b) the magnitude field vector decreases in strength

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