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Problem: You have a 1.2m long copper wire. You want to make an N-turn current loop that generates a 1.8mT magnetic field at the center when the current is 1.6A. You must use the entire wire.
Part A: What will be the diameter of your coil?
Any help I can get on this problem is greatly appreciated! I'm not too familiar with this problem.
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hree identical small Styrofoam balls (m = 1.81g) are suspended from a fixed point by three nonconducting threads, What is the common charge q carried by each ball
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