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TBR Physics Book II page 137 Example 8.10a
“What is true of a conducting loop that spins within a magnetic field about an axis perpendicular to the magnetic field”?
Answer: It experiences an induced alternating current.
I understand that an alternating current is produced when the loop goes through cycles of entering and then exiting the magnetic field.
My question is: How do you know that the loop is actually entering/exiting the field? The question just says it “spins within a magnetic field” – it never says that part of the time during the spin, the loop is “out” of the magnetic field.
“What is true of a conducting loop that spins within a magnetic field about an axis perpendicular to the magnetic field”?
Answer: It experiences an induced alternating current.
I understand that an alternating current is produced when the loop goes through cycles of entering and then exiting the magnetic field.
My question is: How do you know that the loop is actually entering/exiting the field? The question just says it “spins within a magnetic field” – it never says that part of the time during the spin, the loop is “out” of the magnetic field.