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minals in eac In Problem 1, if the three sources are con- nected in series, determine the voltage and polarity across the open terminals if the fol- lowing terminals are connected together. a. Terminals 2-3 and 4-5 b. Terminals 1-4 and 3-6 c. Terminals 1-3 and 4-6

minals in eac In Problem 1, if the three sources are con- nected in series, determine the voltage and polarity across the open terminals if the fol- lowing terminals are connected together. a. Terminals 2-3 and 4-5 b. Terminals 1-4 and 3-6 c. Terminals 1-3 and 4-6

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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FUNDAMENTALS OF MAGNETISM, CIRCUITS What is the SI unit of 9. a. magnetic flux FUNDAME Three de sources G, G, and G3 (Fig. 57) generate voltages as follows: Questions and Problems d. magnetomotive force e. the power dissipated b d. the peak power dissipe nermeability of cast iron at 02 A distorted voltage contai monic of 20 V, 253 Hz. Ca quency of the fundamenta A 001 = 2a 0.7 T. We want to 4 The current in a 60 Hz sin A 0b- = produce a flux den 14 %3D in an air gap having a length ct %3D A 09+ = 8. Show the actual polarity (+)(-) of the ter- minals in each case. lags 36 degrees behind the Calculate the time interva tive peaks of voltage and 15 Referring to Fig. 59, detem gle between the following each case, indicate which a. I, and I; b. 1, and I c. E and I, 6. Conductor AB in Figure 29 In Problem 1, if the three sources are con- 2. nected in series, determine the voltage and a. Calculate the force on the b. Calculate the force on the polarity across the open terminals if the fol- lowing terminals are connected together. a. Terminals 2-3 and 4-5 b. Terminals 1-4 and 3-6 same direction as the directire a. Draw the waveshape of a sin c. Terminals 1-3 and 4-6 Referring to Fig. 58, show the voltage and 3. the actual polarity of the generator terminals frequency of 5 Hz. b. If the voltage is zero at 1 =D0 voltage at t = 5 ms? 75 ms? K at instants 1, 2, 3, and 4. 5 A 4. A conductor 2 m long moves at a speed of 60 km/h through a magnetic field having a %3D A sinusoidal current has an effe flux density of 0.6 T. Calculate the induced voltage. 11 of 50 A. Calculate the peak value A sinusoidal voltage of 120 Vis 12 6 A A coil having 200 turns links a flux of 3 mWb, produced by a permanent magnet. The magnet is moved, and the flux linking the coil falls to 1.2 mWb in 0.2 s. Calculate 5 resistor of 10 0. Figure 59 See Problem 15. Calculate a. the effective current in the resi the average voltage induced. b. the peak voltage across the res16 The voltage applied to an by the expression E= 16 current is I= 20 sin (6 - being expressed in degres a. Draw the phasor diag using effective values b. Draw the waveshape function of o. c. Calculate the peak por peak negative power. a. Referring to Fig. 24, of the distorted sine v the third harmonic so b. Calculate the peak ve resulting waveshape. 3. G, G, 2. 4. G, Figure 57 See Problems 1 and 2. volts +30 E, 10 la 20 30 40 seconds 10 -30 Figure 58 See Problem 3.
Transcribed Image Text:FUNDAMENTALS OF MAGNETISM, CIRCUITS What is the SI unit of 9. a. magnetic flux FUNDAME Three de sources G, G, and G3 (Fig. 57) generate voltages as follows: Questions and Problems d. magnetomotive force e. the power dissipated b d. the peak power dissipe nermeability of cast iron at 02 A distorted voltage contai monic of 20 V, 253 Hz. Ca quency of the fundamenta A 001 = 2a 0.7 T. We want to 4 The current in a 60 Hz sin A 0b- = produce a flux den 14 %3D in an air gap having a length ct %3D A 09+ = 8. Show the actual polarity (+)(-) of the ter- minals in each case. lags 36 degrees behind the Calculate the time interva tive peaks of voltage and 15 Referring to Fig. 59, detem gle between the following each case, indicate which a. I, and I; b. 1, and I c. E and I, 6. Conductor AB in Figure 29 In Problem 1, if the three sources are con- 2. nected in series, determine the voltage and a. Calculate the force on the b. Calculate the force on the polarity across the open terminals if the fol- lowing terminals are connected together. a. Terminals 2-3 and 4-5 b. Terminals 1-4 and 3-6 same direction as the directire a. Draw the waveshape of a sin c. Terminals 1-3 and 4-6 Referring to Fig. 58, show the voltage and 3. the actual polarity of the generator terminals frequency of 5 Hz. b. If the voltage is zero at 1 =D0 voltage at t = 5 ms? 75 ms? K at instants 1, 2, 3, and 4. 5 A 4. A conductor 2 m long moves at a speed of 60 km/h through a magnetic field having a %3D A sinusoidal current has an effe flux density of 0.6 T. Calculate the induced voltage. 11 of 50 A. Calculate the peak value A sinusoidal voltage of 120 Vis 12 6 A A coil having 200 turns links a flux of 3 mWb, produced by a permanent magnet. The magnet is moved, and the flux linking the coil falls to 1.2 mWb in 0.2 s. Calculate 5 resistor of 10 0. Figure 59 See Problem 15. Calculate a. the effective current in the resi the average voltage induced. b. the peak voltage across the res16 The voltage applied to an by the expression E= 16 current is I= 20 sin (6 - being expressed in degres a. Draw the phasor diag using effective values b. Draw the waveshape function of o. c. Calculate the peak por peak negative power. a. Referring to Fig. 24, of the distorted sine v the third harmonic so b. Calculate the peak ve resulting waveshape. 3. G, G, 2. 4. G, Figure 57 See Problems 1 and 2. volts +30 E, 10 la 20 30 40 seconds 10 -30 Figure 58 See Problem 3.
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