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Homework Statement
The problem can be found http://whites.sdsmt.edu/classes/ee382/homework/382Homework1.pdf" (the last one), along with a picture of the circuit.
Homework Equations
R = l/(µS)
mmf = NI = ΨR
B = Ψ/S
The Attempt at a Solution
I've never done a problem like this before. I've looked for information and example problems to help me do it in my book and online, but I haven't found anything that can help me. The part about it that really confuses me is the use of the plunger. Does it move? If it does, how do I know what the length of the gap is? If it doesn't, do I just ignore the part of the plunger that is below the rest of the circuit because it acts like an open circuit (I don't know if that's true or not)? I was hoping someone here could help me figure out what to do. Thanks.
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