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0.7 T. 8 We want to produce a flux density of 0.6T in an air gap having a length of 8 mm. Calculate the mmf required. 1 Co

0.7 T. 8 We want to produce a flux density of 0.6T in an air gap having a length of 8 mm. Calculate the mmf required. 1 Co

College Physics
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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FUNDAMENTALS OF ELECTRICITY, MAGNETISM, AND CIRCUITS What is the SI unit of 9. a. magnetic flux b. magnetic flux density c. magnetic field intensity d. magnetomotive force s and Problems P. Ic sources G, G, and G; (Fig. 57) e voltages as follows: 13 AT nb 14 T E =-100 V permeability of cast iron at 0.2 T, 0.6 T. 2n A OF- = A 09+ = 7 0.7 T. 8. We want to produce a flux density of 0.6T in an air gap having a length of 8 mm. the actual polarity (+)(-) of the ter- in each case. 15 Re Calculate the mmf required. plem 1, if the three sources are con- in series, determine the voltage and y across the open terminals if the fol- terminals are connected together. minals 2-3 and 4-5 minals 1-4 and 3-6 minals 1-3 and 4-6 6. Conductor AB in Figure 29 carries a current of 800 A flowing from B to A. a. Calculate the force on the conductor. b. Calculate the force on the moving N pole. c. Does the force on the N pole act in the same direction as the direction of rotation 10 a. Draw the waveshape of a sinusoidal vol- ing to Fig. 58, show the voltage and ual polarity of the generator terminals ants 1, 2, 3, and 4. ductor 2 m long moves at a speed of h through a magnetic field having a ensity of 0.6 T. Calculate the induced frequency of 5 Hz. b. If the voltage is zero at t = 0, what is ue voltage at t = 5 ms? 75 ms? 150 ms? 11 A sinusoidal current has an effective va having 200 turns links a flux of b. produced by a permanent magnet. agnet is moved, and the flux linking l falls to 1.2 mWb in 0.2 s. Calculate erage voltage induced. 12 A sir al voltage of 120 V is applied to Figure See Pro re Calo ective current in the resistor 91 2. ge across the resistor as 1 and 2. 9.
Transcribed Image Text:FUNDAMENTALS OF ELECTRICITY, MAGNETISM, AND CIRCUITS What is the SI unit of 9. a. magnetic flux b. magnetic flux density c. magnetic field intensity d. magnetomotive force s and Problems P. Ic sources G, G, and G; (Fig. 57) e voltages as follows: 13 AT nb 14 T E =-100 V permeability of cast iron at 0.2 T, 0.6 T. 2n A OF- = A 09+ = 7 0.7 T. 8. We want to produce a flux density of 0.6T in an air gap having a length of 8 mm. the actual polarity (+)(-) of the ter- in each case. 15 Re Calculate the mmf required. plem 1, if the three sources are con- in series, determine the voltage and y across the open terminals if the fol- terminals are connected together. minals 2-3 and 4-5 minals 1-4 and 3-6 minals 1-3 and 4-6 6. Conductor AB in Figure 29 carries a current of 800 A flowing from B to A. a. Calculate the force on the conductor. b. Calculate the force on the moving N pole. c. Does the force on the N pole act in the same direction as the direction of rotation 10 a. Draw the waveshape of a sinusoidal vol- ing to Fig. 58, show the voltage and ual polarity of the generator terminals ants 1, 2, 3, and 4. ductor 2 m long moves at a speed of h through a magnetic field having a ensity of 0.6 T. Calculate the induced frequency of 5 Hz. b. If the voltage is zero at t = 0, what is ue voltage at t = 5 ms? 75 ms? 150 ms? 11 A sinusoidal current has an effective va having 200 turns links a flux of b. produced by a permanent magnet. agnet is moved, and the flux linking l falls to 1.2 mWb in 0.2 s. Calculate erage voltage induced. 12 A sir al voltage of 120 V is applied to Figure See Pro re Calo ective current in the resistor 91 2. ge across the resistor as 1 and 2. 9.
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