Suppose we change the situation shown in Figure as follows: Instead of allowing the loop to fall on its own, we attach a string to it and lower it with constant speed along the path indicated by the dashed line. Is the tension in the string greater than, less than, or equal to the weight of the loop? Give specific answers for times when (a) the loop is above the magnet and (b) the loop is below the magnet. Explain in each case.
Step 1 of 3
We have to explain what will happen to the tension of the string if a loop is falling vertically into the magnetic field of a horseshoe magnet.