- #1
Vishera
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Homework Statement
Homework Equations
The Attempt at a Solution
How did they get VRMS=120∠0° in part b?
How did they find V[sub]RMS[/sub] value here?
- Thread starter Vishera
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SUMMARY
The discussion centers on the calculation of the VRMS value, specifically how VRMS=120∠0° is derived when given a voltage source of 120 V RMS. The voltage source serves as the phase reference, establishing a zero phase angle by default. This understanding is crucial for accurately interpreting AC circuit parameters and their implications in electrical engineering.
PREREQUISITES- Understanding of AC circuit analysis
- Familiarity with RMS voltage concepts
- Knowledge of phase angles in electrical engineering
- Basic principles of voltage sources
- Study the relationship between RMS voltage and peak voltage in AC circuits
- Learn about phasor representation of voltages and currents
- Explore the implications of phase references in AC analysis
- Investigate the use of complex numbers in electrical engineering
Electrical engineering students, educators, and professionals involved in AC circuit design and analysis will benefit from this discussion.
How did they get VRMS=120∠0° in part b?
- #2
gneill
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It is given that the voltage source is 120 V RMS. The voltage source provides the phase reference so it's automatically defined to have a zero phase angle.
TL;DR: determine the internal force of member OA
Hi I'm struggling with this problem. I have calculated the angle to be 45 degrees with tan(theta) = a/a. A is a roller which only has Ay and O has Ox & Oy as a fixed pin. (see fbd.png) is my FBD correct?
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