Item 9 Experiments to study vision often need to track the movements of a subjec

Question

Item 9 Experiments to study vision often need to track the movements of a subject's eye. One way of doing so is to have the subject sit in a magnetic field while wearing special contact lenses with a coil of very fine wire circling the edge. A current is induced in the coil each time the subject rotates his eye. Consider the experiment shown in the figure in which a 23-turn 6.0-mm-diameter coil of wire circles the subjects cornea while a 1.4T magnetic Part A What emf is induced in the coil if the subject shifts his gaze by 6 degree in 0.17s ? Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

Induced emf = rate of change of flux.. in this case due to a change in the flux gathering area (dA/dt) perpendicular to the field.

dA/dt (per turn) = (6

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.