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Question Part Points Submissions Used A piece of insulated wire is shaped into a figure eight as shown in the figure below. For simplicity, model the...


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A piece of insulated wire is shaped into a figure eight as shown in the figure below. For simplicity, model the two halves of the figure eight as circles. The radius of the upper circle is 4.00 cm and that of the lower circle is 8.00 cm. The wire has a uniform resistance per unit length of 8.00 Ω/m. A uniform magnetic field is applied perpendicular to the plane of the two circles, in the direction shown. The magnetic field is increasing at a constant rate of 2.40 T/s.

(a) Find the magnitude of the induced current in the wire.

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Physics-8097092.doc

Solution:
Radius of upper circle,
Radius of lower circle, So, the magnetic flux, From Ampere’s law Resistance of whole figure, Now, So, the magnitude of induced current in the wire,

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