78. * A student in a physics lab investigates the opera- tion of an AC generator. She collects data on the emf of the generator as a function of time (Figure 25-76). The generator consists of a 200-turn coil that is spun in a strong magnetic field. The coil has a cross-sectional area of 25.0 cm². (a) Determine the frequency, f (Hz), of the generated current. (b) Determine the frequency, f (Hz), and the angular frequency, w (rad/s), of the rotation of the coil. (c) Find the magnitude of the magnetic field. (ALI) 3 10.0 0.0 -10.0 DAAN t(s)

78. * A student in a physics lab investigates the opera- tion of an AC generator. She collects data on the emf of the generator as a function of time (Figure 25-76). The generator consists of a 200-turn coil that is spun in a strong magnetic field. The coil has a cross-sectional area of 25.0 cm². (a) Determine the frequency, f (Hz), of the generated current. (b) Determine the frequency, f (Hz), and the angular frequency, w (rad/s), of the rotation of the coil. (c) Find the magnitude of the magnetic field. (ALI) 3 10.0 0.0 -10.0 DAAN t(s)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

7. A generator uses a coil that has 95 turns and a 0.750-T magnetic field. The frequency of this generator is 50.0 Hz, and its emf has an rms value of 220 V (Vms). Assuming that each turn of the coil is circular, determine the length of the wire from which the coil is made. m
8. * The B field in a region has a magnitude of 0.40 T and points in the positive z-direction, as shown in Figure P21.8. Determine the magnetic flux through (a) surface abcd, (b) surface bcef, and (c) surface adef. Figure P21.8 0.3 m al 0.5 m 0.4 m b 0.6 m
5. In the picture shown a diagram labeled ORIGINAL shows a metal loop of wire in a constant magnetic field B that is parallel to the axis of the loop labeled A. Four diagrams are shown labeled #1, #2, #3 and #4. In each diagram a change has been made to the ORIGINAL diagram. For which diagram(s) would an emf be induced in the ring while the change is being made? a. #1 and #2 only b. #3 only c. #1, #3 and #4 d. #1, #2 and #3 e. All of these
18. If you have circular wire with a current I, and you in- crease I via external means, is there an induced current in the loop separate from the externally applied increase in I? A. B. C. Yes No Maybe, there's not enough information to tell
question c
EM Induction Item 4