24 In an unbalanced three-phase electrical circuit, the current at time t ms is given by I(t) = 5 sin 10t + 7 sin (10t – ²) + 8 sin (10t – 4) milliamperes. a Write I(t) in the form A cos(10t + B). b Find the highest current flowing through the circuit, and the time at which it first occurs.
24 In an unbalanced three-phase electrical circuit, the current at time t ms is given by I(t) = 5 sin 10t + 7 sin (10t – ²) + 8 sin (10t – 4) milliamperes. a Write I(t) in the form A cos(10t + B). b Find the highest current flowing through the circuit, and the time at which it first occurs.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.2P: Convert the following instantaneous currents to phasors, using cos(t) as the reference. Give your...
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![24 In an unbalanced three-phase electrical circuit, the current at time t ms is given by
I(t) = 5 sin 10t + 7 sin (10t – 2) + 8 sin (10t - 4) milliamperes.
a Write I(t) in the form A cos(10t + B).
b Find the highest current flowing through the circuit, and the time at which it first occurs.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F493791c9-dd9c-430d-98e1-15310ddc08c2%2F2a6145a2-bbb1-47fa-8316-3dea2d64d11d%2Fht83tu_processed.png&w=3840&q=75)
Transcribed Image Text:24 In an unbalanced three-phase electrical circuit, the current at time t ms is given by
I(t) = 5 sin 10t + 7 sin (10t – 2) + 8 sin (10t - 4) milliamperes.
a Write I(t) in the form A cos(10t + B).
b Find the highest current flowing through the circuit, and the time at which it first occurs.
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