A sinewave depicts movements in the form of waves. It has a datum, rapid, slowing and steady growth in one direction for a quarter cycle with reference to a datum (a reference), and then slow and faster decay in one direction for the next quarter cycle, and all these elements again in the opposite direction (reversal) of the forward movement for the next half-cycle. It has peaks and valleys. In essence, the sinewave is a perfect embodiment of oscillatory movements like springs and quantities like voltage. It retains its waveshape when added to another sinewave of the same frequency and arbitrary phase and is the only periodic waveform which has this property. The charges in a resistor subject to a sinusoidal voltage do not migrate elsewhere on the average. They merely slosh back and forth, so to say, over each cycle without a change in their position when the resistor was not energised. Electrostatics and circuits belong to one science not two. To learn the operation of circuits it is instructive to understand Current, the conduction process and Voltage at the fundamental level as in the following two videos: i. ua-cam.com/video/TTtt28b1dYo/v-deo.html and ii. ua-cam.com/video/8BQM_xw2Rfo/v-deo.html A sinusoidal voltage generator operates by separating charges for the positive half-cycle in one direction initially rapidly and slowing down and momentarily halting when its voltage is at the positive peak, and then gradually reuniting the separated charges to make the separation zero; when all charges reunite, the generator voltage is zero. The negative half-cycle now commences, when the generator operates by separating charges in the opposite direction initially rapidly and slowing down and momentarily halting when its voltage is at the negative peak, and then gradually reuniting the charges to make their separation zero; when all charges reunite, the generator voltage is zero. It then begins the next positive half-cycle followed by the negative half-cycle and the process repeats. The last frame References in video #1 lists textbook 4 which discusses these topics in more detail using a unified approach and provides an intuitive understanding of sinusoidal steady-state voltages and currents in capacitive and inductive circuits.
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A sinewave depicts movements in the form of waves. It has a datum, rapid, slowing and steady growth in one direction for a quarter cycle with reference to a datum (a reference), and then slow and faster decay in one direction for the next quarter cycle, and all these elements again in the opposite direction (reversal) of the forward movement for the next half-cycle. It has peaks and valleys.
In essence, the sinewave is a perfect embodiment of oscillatory movements like springs and quantities like voltage. It retains its waveshape when added to another sinewave of the same frequency and arbitrary phase and is the only periodic waveform which has this property.
The charges in a resistor subject to a sinusoidal voltage do not migrate elsewhere on the average. They merely slosh back and forth, so to say, over each cycle without a change in their position when the resistor was not energised.
Electrostatics and circuits belong to one science not two. To learn the operation of circuits it is instructive to understand Current, the conduction process and Voltage at the fundamental level as in the following two videos:
i. ua-cam.com/video/TTtt28b1dYo/v-deo.html and
ii. ua-cam.com/video/8BQM_xw2Rfo/v-deo.html
A sinusoidal voltage generator operates by separating charges for the positive half-cycle in one direction initially rapidly and slowing down and momentarily halting when its voltage is at the positive peak, and then gradually reuniting the separated charges to make the separation zero; when all charges reunite, the generator voltage is zero. The negative half-cycle now commences, when the generator operates by separating
charges in the opposite direction initially rapidly and slowing down and momentarily halting when its voltage is at the negative peak, and then gradually reuniting the charges to make their separation zero; when all charges reunite, the generator voltage is zero. It then begins the next positive half-cycle followed by the negative half-cycle and the process repeats.
The last frame References in video #1 lists textbook 4 which discusses these topics in more detail using a unified approach and provides an intuitive understanding of sinusoidal steady-state voltages and currents in capacitive and inductive circuits.
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