Electric Circuits Fundamentals & Lab Mnl Pk
8th Edition
ISBN: 9780136125136
Author: Unknown
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 48P
Accurately draw on a grid representing the scope screen in Figure 8-86 how the sine wave will appear if the Volts/Div control is moved to a setting of
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Lesson: Alternating Current System
A wire carries a triangular wave current with a maximum value of 10 amperes. What is the RMS of the current?
What is the shortest time taken for a 100 Hz a.c. to change from zero to half its peak value?
(Assuming the current is a sine wave, I correctly calculated that time to reach its peak value from zero is 2.5ms. However for the question given, 1.25ms was marked wrong and the comment "draw the waveform and think about the time in terms of the period" was left. Please help me understand this)
The following waveform was derived from an oscilloscope with the given settings:
CH1 (Yellow) Settings:
CH2 (Blue) Settings:
Volts/Div: 50V
Volts/Div: 100V
Time/Div: 5ms
Time/Div: 5ms
Probe Setting: X1
Probe Setting: X1
Determine the following:a. CH2 Peak Voltageb. CH2 RMS Voltagec. CH2 Periodd. CH2 Frequency
Chapter 8 Solutions
Electric Circuits Fundamentals & Lab Mnl Pk
Ch. 8 - The period of a 60 Hz sine wave is 16.7 ms.Ch. 8 - The rms and average value of a sine wave are the...Ch. 8 - Prob. 3TFQCh. 8 - The peak value of a sine wave is the same as its...Ch. 8 - The number of radians in 360 is 2 .Ch. 8 - In a three-phase electrical system, the phases are...Ch. 8 - The purpose of an exciter is to supply dc rotor...Ch. 8 - In an automotive alternator, the output current is...Ch. 8 - Prob. 9TFQCh. 8 - A synchronous motor can be used when constant...
Ch. 8 - Prob. 1STCh. 8 - During each cycle, a sine wave reaches a peak...Ch. 8 - A sine wave with a frequency of 12 kHz is changing...Ch. 8 - Prob. 4STCh. 8 - When a sine wave has a frequency of 60 Hz, in 10 s...Ch. 8 - Prob. 6STCh. 8 - Prob. 7STCh. 8 - The average value of a 10 V peak sine wave over...Ch. 8 - Prob. 9STCh. 8 - Prob. 10STCh. 8 - The instantaneous value of a 15 A peak sine wave...Ch. 8 - If the rms curren through a 10k resistor is 5 m A,...Ch. 8 - Prob. 13STCh. 8 - Prob. 14STCh. 8 - Prob. 15STCh. 8 - Prob. 16STCh. 8 - Prob. 17STCh. 8 - Prob. 1TSCCh. 8 - Prob. 2TSCCh. 8 - Prob. 3TSCCh. 8 - Prob. 4TSCCh. 8 - Prob. 5TSCCh. 8 - Calculate the frequency for each of the following...Ch. 8 - Calculate the period for each of the following...Ch. 8 - A sine wave goes through 5 cycles in 10s. What is...Ch. 8 - A sine wave has a frequency of 50 kHz. How many...Ch. 8 - How long does it take a 10 kHz sine wave to...Ch. 8 - A sine wave has a peak value of 12 V. Determine...Ch. 8 - A sinusoidal current has an rms value of 5 mA....Ch. 8 - For the sine wave in Figure 8-74, determine the...Ch. 8 - If each horizontal division in Figure 8-74 is 1...Ch. 8 - In Figure 8-74, what is the instantaneous voltage...Ch. 8 - Sine wave A has a positive-going zero crossing at...Ch. 8 - One sine wave has a positive peak at 75 and...Ch. 8 - Draw two since waves as follows: Sline wave A is...Ch. 8 - Convert the following angular values from degrees...Ch. 8 - Convert the following angular values from radians...Ch. 8 - A certain sine wave has a positive-going zero...Ch. 8 - For a particular 0 reference sinusoidal current,...Ch. 8 - For a 0 reference sinw wave with an rms value of...Ch. 8 - Sine wave A lags sine wave B by 30. Both have peak...Ch. 8 - Repeat Problem 19 for the case when sine wave A...Ch. 8 - A sinusoidal voltage is applied to the resistive...Ch. 8 - Find the half-cycle average values of the voltages...Ch. 8 - Determine th rms voltage across R3 in Figure 8-77.Ch. 8 - A sine wave with an rms value of 10.6 V is riding...Ch. 8 - How much dc voltage must be added to a 3 V rms...Ch. 8 - A 6 V peak sine wave is riding on a dc voltage of...Ch. 8 - The conductive wire loop on the rotor of a simple...Ch. 8 - Prob. 28PCh. 8 - At what speed of rotation must a four-pole...Ch. 8 - A common frequency for alternators on aircraft is...Ch. 8 - Prob. 31PCh. 8 - Explain how the field in a three-phase motor...Ch. 8 - From the graph in Figure 8-78, determine the...Ch. 8 - Determine the duty cycle for each pulse waveform...Ch. 8 - Find the average value of each positive-going...Ch. 8 - What is the frequency of each waveform in Figure...Ch. 8 - What is the frequency of each sawtooth waveform in...Ch. 8 - A square wave has a period of 40s. List the first...Ch. 8 - What is the fundamental frequency of the square...Ch. 8 - Determine the peak value and the period of the...Ch. 8 - Determine the rms value and the frequency of the...Ch. 8 - Determine the rms value and the frequency of the...Ch. 8 - Find the amplitude, pulse width, and duty cycle...Ch. 8 - A certain sine wave has a frequency of 2.2 kHz and...Ch. 8 - Figure 8-84 shows a sinusoidal voltage source in...Ch. 8 - A nonsinusoidal waveform called a stairstep is...Ch. 8 - Refer to the oscilloscope screen in Figure 8-86....Ch. 8 - Accurately draw on a grid representing the scope...Ch. 8 - Accurately draw on a grid representing the scope...Ch. 8 - Based on the instrument settings and an...Ch. 8 - Examine the circuit board and the oscilloscope...Ch. 8 - Prob. 52PCh. 8 - www. prenhall.com/floyd. 53. Open file P08-53 and...Ch. 8 - www. prenhall.com/floyd. 54. Open file P08-54 and...Ch. 8 - www. prenhall.com/floyd. 55. Open file P08-55 and...Ch. 8 - www. prenhall.com/floyd. 56. Open file P08-56 and...
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