A loose spiral spring carrying no current is hung from a ceiling . When a switch is thrown so that a current exists in the spring, how do the coils move?
A) closer together
B) farther apart
C) not at all
D) widening the loop diameter
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Our tutors have indicated that to solve this problem you will need to apply the Magnetic Force Between Parallel Currents concept. You can view video lessons to learn Magnetic Force Between Parallel Currents. Or if you need more Magnetic Force Between Parallel Currents practice, you can also practice Magnetic Force Between Parallel Currents practice problems.
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Based on our data, we think this problem is relevant for Professor Jakkala's class at UC.