Onda senoidal e como calcular o valor eficaz (RMS)!

Understand what a pure sine wave means, including the phase angle, cycle, amplitude, period, peak voltage, peak-to-peak, and how to calculate the integral of the effective value or RMS by deducing the formula from the calculations. You can see the positive voltage on the oscilloscope screen by using the oscilloscope's "modulo" function. In the waveform graph, which is still a periodic signal, it's easier to understand the calculations for both a single sine wave and when extrapolating to a three-phase approach in which each wave is delayed by 120 degrees relative to the previous one. This same reasoning can be applied to a square, triangular, sawtooth, or other waveforms, whether full-wave, half-wave, voltage, or current. Electrical measuring tools or instruments and other items used in this video: Keysight MSOX3104T 1GHz Digital Oscilloscope: Communication Protocol Analysis. 500MHz Keysight N2874A passive probe: Probe for signal measurement. Among the objectives of this video, we highlight: Explain what a sinusoid is and show its equation based on maximum amplitude. Explain why a sinusoid exists in the electrical grid and its relationship to energy generation. We cover the following topics throughout this video: What is an alternating wave? What are frequency, period, and amplitude? What is a sinusoid and the sine function from a circle, and how it appears in the waveform? An alternating voltage generator consists of a coil that rotates within a magnetic field, as in hydroelectric plants. A quick explanation of the effective value (RMS), its integral, and how the calculation can be done directly for a sinusoidal wave. Voltage polarity does not affect the effective value. Highlights in this video (edit annotations): 00:28 - Although there are several oscilloscope models and they have many different functions, some principles are the same for all, such as triggering, time scale, and wave amplitude. 01:26 - Direct and alternating current are part of our daily lives. It's interesting to know how this happens and the difference between them. 02:19 - The concept of generation and coil closures raises many questions, such as the neutral point, phase balancing, and phase shift. 03:24 - Generators use the magnetic effect to generate induced electric current in cable coils, and this has everything to do with the concept of an electromagnet. 04:18 - Phase shift, combined with the electrical frequency and number of poles of an induction motor, are responsible for the fixed speeds of a three-phase induction motor. 05:48 - There are devices specifically designed to measure RMS quantities; those that don't have this capability are called average response meters. 06:41 - The concept of electrical voltage is very important for the study of other electrical quantities, such as electric current and electrical resistance, for example. 07:58 - The study of electricity involves many calculations. Due to the complexity of electrical energy, the accuracy of these calculations is crucial. 08:51 - A very common calculation in electricity is the use of Ohm's Law formulas that relate voltage, current, and resistance. 10:20 - See the many features of an oscilloscope. Featured in this video: Alex Teixeira Benfica   / alexbenfica   Video Editing: Alex Teixeira Benfica #MEL_00337 -- O Mundo da Elétrica is an electricity, electrical, and electronics channel with quality videos for you to learn on your phone, tablet, or on your living room TV. Electrical for everyone! Electrical control courses, online electrical classes, PDF manuals, electrical diagrams, and explanations of NR 10 and other concepts! Join Mundo da Elétrica: On YouTube (click and subscribe): http://goo.gl/vXru8M Mundo da Elétrica website: http://www.mundodaeletrica.com.br On Facebook:   / mundodaeletrica   On Google Plus: https://plus.google.com/+Mundodaeletr... On Twitter:   / mundodaeletrica   On LinkedIn: https://goo.gl/S8lcwp