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Unformatted text preview: Q What is the direction of the induced current? A square coil of wire with side 5.0 cm contains 100 loops and is perpendicular to a uniform 0.60 T magnetic field. It is quickly and uniformly pulled from the field to a region where B drops to zero. At t=0, the right edge of the coil is at the edge of the field. It takes 0.100 s to move the whole coil into the field free region. (a) Find the rate of change of the flux. (b) Find the emf and induced current. (c) How much energy is dissipated in the coil if its resistance is 100 ohms. (d) What was the average force required? EMF Induced by a moving conductor EMF Induced by a moving conductor The distance the rod travels: The area swept by the rod: Change in the flux: Magnitude of emf dx dt v dx vdt l dA Blvdt dA B d B Blv dt Blvdt dt d B ⋅ = ⋅ = = ⋅ = = = = f f e AC GENERATOR...
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This note was uploaded on 03/07/2011 for the course ECON 101 taught by Professor Carlos during the Fall '08 term at Oregon State.
 Fall '08
 Carlos

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