The magnetic field at point P a distance x from the center of the square along its axis is B = μ 0 I L 2 2 π ( x 2 + L 2 / 4 ) x 2 + L 2 / 2 .

Question

For each of the actions depicted below, a magnet and/or metal loop moves with velocity v→ (v→ is constant and has the same magnitude in all parts). Determine whether a current is induced in the metal loop. If so, indicate the direction of the current in the loop, either clockwise or counterclockwise when seen from the right of the loop. The axis of the magnet is lined up with the center of the loop. For the action depicted in (Figure 5), indicate the direction of the induced current in the loop (clockwise, counterclockwise or zero, when seen from the right of the loop). I know that the current is clockwise, I just dont understand why. Please fully explain why it's clockwise, Thank you

Answer 1

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Chapter 29, Problem 50CP

To determine

To show: The magnetic field at point P a distance x from the center of the square along its axis is B=μ0IL22π(x2+L2/4)x2+L2/2 .

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