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Suppose we have a
single loop of wire lying in the plane of the page (or monitor screen) and
the loop is split -- that is to say, it's not a complete circuit.
Also imagine an increasing magnetic field into the page (monitor).
Faraday's/Lenz's law tells us that an emf will be induced such as to
produce a CCW current which generates a magnetic field out of the page.
Now here's the question. How large can this "split" become?
For example, suppose we open up the split so that it's as large as the
diameter of the loop -- what area does one use to calculate the magnetic
flux?
Does one just imagine a "short" between the two open ends of the loop so
that one has a quasi enclosed area?