What Is the RMS Current of a 10V Sine Wave Through a 5 Ohm Resistor?

In summary, PWM can simulate a decrease in voltage by using a stable amplitude. For example, a 10v sine wave with a 50% duty cycle would be equivalent to a 5v amplitude. This would result in a current that is half of the original value when passed through a standard resistor. When dealing with a sine wave, the RMS value is typically used, which stands for Root Mean Square and is valid for any periodic waveform. More information and formulas can be found at the provided link.
  • #1
Tesladude
168
1
So PWM can simulate a decrease in voltage when useing a stable amplitude.

10v50% duty cycle is 1/2 the amplitude meaning 5v. And if this is through a standard resistor then you will see 1/2 the current.

But what about a sine wave? What fraction or percentage does this come out to be? What current will you read with a 10v sine wave through a 5ohm resistor?
 
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  • #2

FAQ: What Is the RMS Current of a 10V Sine Wave Through a 5 Ohm Resistor?

What is the current fraction of a sinewave?

The current fraction of a sinewave refers to the proportion or percentage of the maximum current value that is present at any given point on a sinewave curve. It is a measure of the amplitude of the current at a specific point in time.

How is the current fraction of a sinewave calculated?

The current fraction of a sinewave is calculated by dividing the instantaneous current value at a specific point on the sinewave curve by the maximum current value. This will result in a decimal value between 0 and 1, which can then be converted to a percentage by multiplying by 100.

What factors affect the current fraction of a sinewave?

The current fraction of a sinewave can be affected by a number of factors, including the amplitude and frequency of the sinewave, the nature of the circuit it is flowing through, and any resistors or other components in the circuit that may alter the current flow.

Why is the current fraction of a sinewave important?

The current fraction of a sinewave is an important concept in understanding the behavior of electrical circuits. It can help determine the amount of power being transferred through the circuit and can also be used to calculate the voltage and current at any point on the sinewave curve.

How is the current fraction of a sinewave used in practical applications?

The current fraction of a sinewave is used in a variety of practical applications, including designing and analyzing electrical circuits, power transmission and distribution systems, and electronic devices. It is also important in fields such as telecommunications, where the quality of a signal can be measured by the current fraction of a sinewave.

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