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Related Concept Videos

Effective Value of a Periodic Waveform01:07

Effective Value of a Periodic Waveform

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The concept of effective value, the root mean square (RMS) value, is crucial in understanding electrical circuits and power delivery. This idea emerges from the necessity to measure the effectiveness of a voltage or current source in supplying power to a resistive load.
The effective value of a periodic current represents the direct current (DC) that conveys the same average power to a resistor as the periodic current itself. This concept is crucial when assessing AC circuits. To determine the...
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Related Experiment Video

Updated: Apr 21, 2026

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer
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[Development of ultrasonic power meter].

Hongxin Huang, Changming Hu, Yan Zheng

    Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation
    |October 22, 2014
    PubMed
    Summary

    This study presents a novel ultrasonic power meter designed for precise measurements. The developed device demonstrates excellent stability and accuracy in initial performance tests.

    Area of Science:

    • Acoustics
    • Metrology
    • Instrumentation Engineering

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